7(7x-7)-9(x+9)=10x-2-2x

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Solution for 7(7x-7)-9(x+9)=10x-2-2x equation:


Simplifying
7(7x + -7) + -9(x + 9) = 10x + -2 + -2x

Reorder the terms:
7(-7 + 7x) + -9(x + 9) = 10x + -2 + -2x
(-7 * 7 + 7x * 7) + -9(x + 9) = 10x + -2 + -2x
(-49 + 49x) + -9(x + 9) = 10x + -2 + -2x

Reorder the terms:
-49 + 49x + -9(9 + x) = 10x + -2 + -2x
-49 + 49x + (9 * -9 + x * -9) = 10x + -2 + -2x
-49 + 49x + (-81 + -9x) = 10x + -2 + -2x

Reorder the terms:
-49 + -81 + 49x + -9x = 10x + -2 + -2x

Combine like terms: -49 + -81 = -130
-130 + 49x + -9x = 10x + -2 + -2x

Combine like terms: 49x + -9x = 40x
-130 + 40x = 10x + -2 + -2x

Reorder the terms:
-130 + 40x = -2 + 10x + -2x

Combine like terms: 10x + -2x = 8x
-130 + 40x = -2 + 8x

Solving
-130 + 40x = -2 + 8x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8x' to each side of the equation.
-130 + 40x + -8x = -2 + 8x + -8x

Combine like terms: 40x + -8x = 32x
-130 + 32x = -2 + 8x + -8x

Combine like terms: 8x + -8x = 0
-130 + 32x = -2 + 0
-130 + 32x = -2

Add '130' to each side of the equation.
-130 + 130 + 32x = -2 + 130

Combine like terms: -130 + 130 = 0
0 + 32x = -2 + 130
32x = -2 + 130

Combine like terms: -2 + 130 = 128
32x = 128

Divide each side by '32'.
x = 4

Simplifying
x = 4

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