225=-8x-7(1+3x)

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Solution for 225=-8x-7(1+3x) equation:


Simplifying
225 = -8x + -7(1 + 3x)
225 = -8x + (1 * -7 + 3x * -7)
225 = -8x + (-7 + -21x)

Reorder the terms:
225 = -7 + -8x + -21x

Combine like terms: -8x + -21x = -29x
225 = -7 + -29x

Solving
225 = -7 + -29x

Solving for variable 'x'.

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

Add '29x' to each side of the equation.
225 + 29x = -7 + -29x + 29x

Combine like terms: -29x + 29x = 0
225 + 29x = -7 + 0
225 + 29x = -7

Add '-225' to each side of the equation.
225 + -225 + 29x = -7 + -225

Combine like terms: 225 + -225 = 0
0 + 29x = -7 + -225
29x = -7 + -225

Combine like terms: -7 + -225 = -232
29x = -232

Divide each side by '29'.
x = -8

Simplifying
x = -8

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