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

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


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

Combine like terms: -7x + -9x = -16x
2(7 + -16x) + 9(2x + 7) = 7
(7 * 2 + -16x * 2) + 9(2x + 7) = 7
(14 + -32x) + 9(2x + 7) = 7

Reorder the terms:
14 + -32x + 9(7 + 2x) = 7
14 + -32x + (7 * 9 + 2x * 9) = 7
14 + -32x + (63 + 18x) = 7

Reorder the terms:
14 + 63 + -32x + 18x = 7

Combine like terms: 14 + 63 = 77
77 + -32x + 18x = 7

Combine like terms: -32x + 18x = -14x
77 + -14x = 7

Solving
77 + -14x = 7

Solving for variable 'x'.

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

Add '-77' to each side of the equation.
77 + -77 + -14x = 7 + -77

Combine like terms: 77 + -77 = 0
0 + -14x = 7 + -77
-14x = 7 + -77

Combine like terms: 7 + -77 = -70
-14x = -70

Divide each side by '-14'.
x = 5

Simplifying
x = 5

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