x-3(x+3)=8+7(x+4)

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Solution for x-3(x+3)=8+7(x+4) equation:


Simplifying
x + -3(x + 3) = 8 + 7(x + 4)

Reorder the terms:
x + -3(3 + x) = 8 + 7(x + 4)
x + (3 * -3 + x * -3) = 8 + 7(x + 4)
x + (-9 + -3x) = 8 + 7(x + 4)

Reorder the terms:
-9 + x + -3x = 8 + 7(x + 4)

Combine like terms: x + -3x = -2x
-9 + -2x = 8 + 7(x + 4)

Reorder the terms:
-9 + -2x = 8 + 7(4 + x)
-9 + -2x = 8 + (4 * 7 + x * 7)
-9 + -2x = 8 + (28 + 7x)

Combine like terms: 8 + 28 = 36
-9 + -2x = 36 + 7x

Solving
-9 + -2x = 36 + 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.
-9 + -2x + -7x = 36 + 7x + -7x

Combine like terms: -2x + -7x = -9x
-9 + -9x = 36 + 7x + -7x

Combine like terms: 7x + -7x = 0
-9 + -9x = 36 + 0
-9 + -9x = 36

Add '9' to each side of the equation.
-9 + 9 + -9x = 36 + 9

Combine like terms: -9 + 9 = 0
0 + -9x = 36 + 9
-9x = 36 + 9

Combine like terms: 36 + 9 = 45
-9x = 45

Divide each side by '-9'.
x = -5

Simplifying
x = -5

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