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

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


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

Reorder the terms:
7(9 + x) + x = 4(x + 4) + -4
(9 * 7 + x * 7) + x = 4(x + 4) + -4
(63 + 7x) + x = 4(x + 4) + -4

Combine like terms: 7x + x = 8x
63 + 8x = 4(x + 4) + -4

Reorder the terms:
63 + 8x = 4(4 + x) + -4
63 + 8x = (4 * 4 + x * 4) + -4
63 + 8x = (16 + 4x) + -4

Reorder the terms:
63 + 8x = 16 + -4 + 4x

Combine like terms: 16 + -4 = 12
63 + 8x = 12 + 4x

Solving
63 + 8x = 12 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
63 + 8x + -4x = 12 + 4x + -4x

Combine like terms: 8x + -4x = 4x
63 + 4x = 12 + 4x + -4x

Combine like terms: 4x + -4x = 0
63 + 4x = 12 + 0
63 + 4x = 12

Add '-63' to each side of the equation.
63 + -63 + 4x = 12 + -63

Combine like terms: 63 + -63 = 0
0 + 4x = 12 + -63
4x = 12 + -63

Combine like terms: 12 + -63 = -51
4x = -51

Divide each side by '4'.
x = -12.75

Simplifying
x = -12.75

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