x+3(x-1)=8x+18

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Solution for x+3(x-1)=8x+18 equation:


Simplifying
x + 3(x + -1) = 8x + 18

Reorder the terms:
x + 3(-1 + x) = 8x + 18
x + (-1 * 3 + x * 3) = 8x + 18
x + (-3 + 3x) = 8x + 18

Reorder the terms:
-3 + x + 3x = 8x + 18

Combine like terms: x + 3x = 4x
-3 + 4x = 8x + 18

Reorder the terms:
-3 + 4x = 18 + 8x

Solving
-3 + 4x = 18 + 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.
-3 + 4x + -8x = 18 + 8x + -8x

Combine like terms: 4x + -8x = -4x
-3 + -4x = 18 + 8x + -8x

Combine like terms: 8x + -8x = 0
-3 + -4x = 18 + 0
-3 + -4x = 18

Add '3' to each side of the equation.
-3 + 3 + -4x = 18 + 3

Combine like terms: -3 + 3 = 0
0 + -4x = 18 + 3
-4x = 18 + 3

Combine like terms: 18 + 3 = 21
-4x = 21

Divide each side by '-4'.
x = -5.25

Simplifying
x = -5.25

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