Q: How can you make the equation 987654321 equal 0 by only using two plus signs and one minus sign?

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98 - 76 + 54 + 3 + 21 = 100 :D

They equal a minus and two +'s or two -'s equal a + :)

This website tends to omit some crucial operational signs. It will be impossible to answer your question accurately without all the proper signs. Please re-submit it with the equation written out. (plus, minus, equals, etc.)

Same mathematical signs equal plus Different mathematical signs equal minus Plus Plus = Plus (+)(+) = + Minus Minus = Plus (-)(-) = + Plus Minus = Minus (+)(-) = - Minus Plus = Minus (-)(+) = - So the direct answer to your question would be: plus minus equals minus

By including its plus or minus signs

No, expressions do not have equal signs. Equations do, though. You can think of it like this: Equtions have EQUAl signs, while expressions do not.No, an expression cannot have an equal sign. If it were to have an equal sign, it would then be an equation.

It is an equation with the plus or minus signs missing which makes it impossible to solve.

When you have two different signs together (a plus and a minus) the minus takes precedence (the minus "wins"). So, for example, 9 + -3 = 9 - 3 = 6.

9+8+7+65+4+3+2+1 = 99. So 7 addition signs need to go in 987654321 to get a total of 99.

Without any plus or minus signs or an equality sign the given terms can't be considered to be an equation.

A positive number minus a negative number? x - -x is the same as x + x because the negative signs cancel each other out and become positive. So, when you see two negative signs right after the other, just add.

io dont know

yes. equations have an equals signs and expressions don't

-6 when you multiply two minus numbers the minus signs cancel each other out so -12 * -6 = 72

simply put, an expression has no "equal to" sign (=). and equation has the "equal" to sign and and inequality has either one of these signs <, >

That's not an equation, it has no equal sign. It seems that when typing a question, the equal sign and some other signs get eliminated on this site; you'll have to write the equal sign as "equals" or "equal"; similarly for some other special symbols.

Because both minus signs to be cut therefore minus * minus will be treated as plus numbers

Because of the three minus signs, i.e. an odd number of minus signs, the answer is negative.

This tells you that both factors are likely to have minus signs.That means that both of your brackets will have minus signs.

Mathematicians first used the plus and minus signs in the sixteenth century.

Terms are in expressions that separate by plus or minus signs. The answer is TERMS.

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Without any equality signs and a missing plus or minus sign the given expressions can't be solved as in an equation.

You add all the numbers with + signs and subtract all that have minus signs.

9 + 8 + 7 + 65 + 4 + 3 + 2 + 1 = 99, so 7 plus signs.

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