3x+9=2(x-1)+8

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Solution for 3x+9=2(x-1)+8 equation:


Simplifying
3x + 9 = 2(x + -1) + 8

Reorder the terms:
9 + 3x = 2(x + -1) + 8

Reorder the terms:
9 + 3x = 2(-1 + x) + 8
9 + 3x = (-1 * 2 + x * 2) + 8
9 + 3x = (-2 + 2x) + 8

Reorder the terms:
9 + 3x = -2 + 8 + 2x

Combine like terms: -2 + 8 = 6
9 + 3x = 6 + 2x

Solving
9 + 3x = 6 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
9 + 3x + -2x = 6 + 2x + -2x

Combine like terms: 3x + -2x = 1x
9 + 1x = 6 + 2x + -2x

Combine like terms: 2x + -2x = 0
9 + 1x = 6 + 0
9 + 1x = 6

Add '-9' to each side of the equation.
9 + -9 + 1x = 6 + -9

Combine like terms: 9 + -9 = 0
0 + 1x = 6 + -9
1x = 6 + -9

Combine like terms: 6 + -9 = -3
1x = -3

Divide each side by '1'.
x = -3

Simplifying
x = -3

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