-3(-7x+7)-7x=4(x-1)-9

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Solution for -3(-7x+7)-7x=4(x-1)-9 equation:


Simplifying
-3(-7x + 7) + -7x = 4(x + -1) + -9

Reorder the terms:
-3(7 + -7x) + -7x = 4(x + -1) + -9
(7 * -3 + -7x * -3) + -7x = 4(x + -1) + -9
(-21 + 21x) + -7x = 4(x + -1) + -9

Combine like terms: 21x + -7x = 14x
-21 + 14x = 4(x + -1) + -9

Reorder the terms:
-21 + 14x = 4(-1 + x) + -9
-21 + 14x = (-1 * 4 + x * 4) + -9
-21 + 14x = (-4 + 4x) + -9

Reorder the terms:
-21 + 14x = -4 + -9 + 4x

Combine like terms: -4 + -9 = -13
-21 + 14x = -13 + 4x

Solving
-21 + 14x = -13 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-21 + 14x + -4x = -13 + 4x + -4x

Combine like terms: 14x + -4x = 10x
-21 + 10x = -13 + 4x + -4x

Combine like terms: 4x + -4x = 0
-21 + 10x = -13 + 0
-21 + 10x = -13

Add '21' to each side of the equation.
-21 + 21 + 10x = -13 + 21

Combine like terms: -21 + 21 = 0
0 + 10x = -13 + 21
10x = -13 + 21

Combine like terms: -13 + 21 = 8
10x = 8

Divide each side by '10'.
x = 0.8

Simplifying
x = 0.8

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