9(x-2)-(3x+1)=7-7x

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Solution for 9(x-2)-(3x+1)=7-7x equation:


Simplifying
9(x + -2) + -1(3x + 1) = 7 + -7x

Reorder the terms:
9(-2 + x) + -1(3x + 1) = 7 + -7x
(-2 * 9 + x * 9) + -1(3x + 1) = 7 + -7x
(-18 + 9x) + -1(3x + 1) = 7 + -7x

Reorder the terms:
-18 + 9x + -1(1 + 3x) = 7 + -7x
-18 + 9x + (1 * -1 + 3x * -1) = 7 + -7x
-18 + 9x + (-1 + -3x) = 7 + -7x

Reorder the terms:
-18 + -1 + 9x + -3x = 7 + -7x

Combine like terms: -18 + -1 = -19
-19 + 9x + -3x = 7 + -7x

Combine like terms: 9x + -3x = 6x
-19 + 6x = 7 + -7x

Solving
-19 + 6x = 7 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-19 + 6x + 7x = 7 + -7x + 7x

Combine like terms: 6x + 7x = 13x
-19 + 13x = 7 + -7x + 7x

Combine like terms: -7x + 7x = 0
-19 + 13x = 7 + 0
-19 + 13x = 7

Add '19' to each side of the equation.
-19 + 19 + 13x = 7 + 19

Combine like terms: -19 + 19 = 0
0 + 13x = 7 + 19
13x = 7 + 19

Combine like terms: 7 + 19 = 26
13x = 26

Divide each side by '13'.
x = 2

Simplifying
x = 2

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