7-9(x-5)-7=7x+3(9-3x)-81

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Solution for 7-9(x-5)-7=7x+3(9-3x)-81 equation:


Simplifying
7 + -9(x + -5) + -7 = 7x + 3(9 + -3x) + -81

Reorder the terms:
7 + -9(-5 + x) + -7 = 7x + 3(9 + -3x) + -81
7 + (-5 * -9 + x * -9) + -7 = 7x + 3(9 + -3x) + -81
7 + (45 + -9x) + -7 = 7x + 3(9 + -3x) + -81

Reorder the terms:
7 + 45 + -7 + -9x = 7x + 3(9 + -3x) + -81

Combine like terms: 7 + 45 = 52
52 + -7 + -9x = 7x + 3(9 + -3x) + -81

Combine like terms: 52 + -7 = 45
45 + -9x = 7x + 3(9 + -3x) + -81
45 + -9x = 7x + (9 * 3 + -3x * 3) + -81
45 + -9x = 7x + (27 + -9x) + -81

Reorder the terms:
45 + -9x = 27 + -81 + 7x + -9x

Combine like terms: 27 + -81 = -54
45 + -9x = -54 + 7x + -9x

Combine like terms: 7x + -9x = -2x
45 + -9x = -54 + -2x

Solving
45 + -9x = -54 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
45 + -9x + 2x = -54 + -2x + 2x

Combine like terms: -9x + 2x = -7x
45 + -7x = -54 + -2x + 2x

Combine like terms: -2x + 2x = 0
45 + -7x = -54 + 0
45 + -7x = -54

Add '-45' to each side of the equation.
45 + -45 + -7x = -54 + -45

Combine like terms: 45 + -45 = 0
0 + -7x = -54 + -45
-7x = -54 + -45

Combine like terms: -54 + -45 = -99
-7x = -99

Divide each side by '-7'.
x = 14.14285714

Simplifying
x = 14.14285714

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