112-(7x+4)=7(x+9)+x

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Solution for 112-(7x+4)=7(x+9)+x equation:


Simplifying
112 + -1(7x + 4) = 7(x + 9) + x

Reorder the terms:
112 + -1(4 + 7x) = 7(x + 9) + x
112 + (4 * -1 + 7x * -1) = 7(x + 9) + x
112 + (-4 + -7x) = 7(x + 9) + x

Combine like terms: 112 + -4 = 108
108 + -7x = 7(x + 9) + x

Reorder the terms:
108 + -7x = 7(9 + x) + x
108 + -7x = (9 * 7 + x * 7) + x
108 + -7x = (63 + 7x) + x

Combine like terms: 7x + x = 8x
108 + -7x = 63 + 8x

Solving
108 + -7x = 63 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
108 + -7x + -8x = 63 + 8x + -8x

Combine like terms: -7x + -8x = -15x
108 + -15x = 63 + 8x + -8x

Combine like terms: 8x + -8x = 0
108 + -15x = 63 + 0
108 + -15x = 63

Add '-108' to each side of the equation.
108 + -108 + -15x = 63 + -108

Combine like terms: 108 + -108 = 0
0 + -15x = 63 + -108
-15x = 63 + -108

Combine like terms: 63 + -108 = -45
-15x = -45

Divide each side by '-15'.
x = 3

Simplifying
x = 3

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