7(x+4)+3(x+4)=7x-7

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


Simplifying
7(x + 4) + 3(x + 4) = 7x + -7

Reorder the terms:
7(4 + x) + 3(x + 4) = 7x + -7
(4 * 7 + x * 7) + 3(x + 4) = 7x + -7
(28 + 7x) + 3(x + 4) = 7x + -7

Reorder the terms:
28 + 7x + 3(4 + x) = 7x + -7
28 + 7x + (4 * 3 + x * 3) = 7x + -7
28 + 7x + (12 + 3x) = 7x + -7

Reorder the terms:
28 + 12 + 7x + 3x = 7x + -7

Combine like terms: 28 + 12 = 40
40 + 7x + 3x = 7x + -7

Combine like terms: 7x + 3x = 10x
40 + 10x = 7x + -7

Reorder the terms:
40 + 10x = -7 + 7x

Solving
40 + 10x = -7 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
40 + 10x + -7x = -7 + 7x + -7x

Combine like terms: 10x + -7x = 3x
40 + 3x = -7 + 7x + -7x

Combine like terms: 7x + -7x = 0
40 + 3x = -7 + 0
40 + 3x = -7

Add '-40' to each side of the equation.
40 + -40 + 3x = -7 + -40

Combine like terms: 40 + -40 = 0
0 + 3x = -7 + -40
3x = -7 + -40

Combine like terms: -7 + -40 = -47
3x = -47

Divide each side by '3'.
x = -15.66666667

Simplifying
x = -15.66666667

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