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Q: What does x equal X plus 7-12?

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x+x+x= 3x

-x + x = 0.

2 x 2 x 2 x 89 = 712

If x is equal to 5, then x squared plus 25 is equal to 50.

It is: 12x

It equals x+5y simplified

Yes it does

no...why would it.... it equals 2x+9

x+x=2x

X 3 plus x-142 plus x is an equation equal to x3+2x-142.

(x + 3)(x + 4) = x2 + 7x + 12

The expanded form of 712 is (7 x 100) + (1 x 10) + 2.

(x - a) + (x - a) + (b) = 2 (x - a) + (b) = x - a + x - a + b = 2x - 2a + b

it means that x should equal 10. x + x = 20. x = 10

X + 4(x) + 2x+ 4x + 25x + 2

(x+5)(x+6) equals x^2 +11x+30

I assume you mean (x+10)(x+2) This would equal x^2+12x+20 x^2 means x squared

depend on x value

20

712 = 23 x 89

59.33 x 12 = 712

x = 0

If 40 plus x equals 25 then x is equal to -15.

262164

It doesn't; it equals 2x. Only if x = 0 does 2x = x.