-10(2x-4)+7(3x-7)-7=9-7

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Solution for -10(2x-4)+7(3x-7)-7=9-7 equation:


Simplifying
-10(2x + -4) + 7(3x + -7) + -7 = 9 + -7

Reorder the terms:
-10(-4 + 2x) + 7(3x + -7) + -7 = 9 + -7
(-4 * -10 + 2x * -10) + 7(3x + -7) + -7 = 9 + -7
(40 + -20x) + 7(3x + -7) + -7 = 9 + -7

Reorder the terms:
40 + -20x + 7(-7 + 3x) + -7 = 9 + -7
40 + -20x + (-7 * 7 + 3x * 7) + -7 = 9 + -7
40 + -20x + (-49 + 21x) + -7 = 9 + -7

Reorder the terms:
40 + -49 + -7 + -20x + 21x = 9 + -7

Combine like terms: 40 + -49 = -9
-9 + -7 + -20x + 21x = 9 + -7

Combine like terms: -9 + -7 = -16
-16 + -20x + 21x = 9 + -7

Combine like terms: -20x + 21x = 1x
-16 + 1x = 9 + -7

Combine like terms: 9 + -7 = 2
-16 + 1x = 2

Solving
-16 + 1x = 2

Solving for variable 'x'.

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

Add '16' to each side of the equation.
-16 + 16 + 1x = 2 + 16

Combine like terms: -16 + 16 = 0
0 + 1x = 2 + 16
1x = 2 + 16

Combine like terms: 2 + 16 = 18
1x = 18

Divide each side by '1'.
x = 18

Simplifying
x = 18

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