8x+31x+8=42x-1

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Solution for 8x+31x+8=42x-1 equation:


Simplifying
8x + 31x + 8 = 42x + -1

Reorder the terms:
8 + 8x + 31x = 42x + -1

Combine like terms: 8x + 31x = 39x
8 + 39x = 42x + -1

Reorder the terms:
8 + 39x = -1 + 42x

Solving
8 + 39x = -1 + 42x

Solving for variable 'x'.

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

Add '-42x' to each side of the equation.
8 + 39x + -42x = -1 + 42x + -42x

Combine like terms: 39x + -42x = -3x
8 + -3x = -1 + 42x + -42x

Combine like terms: 42x + -42x = 0
8 + -3x = -1 + 0
8 + -3x = -1

Add '-8' to each side of the equation.
8 + -8 + -3x = -1 + -8

Combine like terms: 8 + -8 = 0
0 + -3x = -1 + -8
-3x = -1 + -8

Combine like terms: -1 + -8 = -9
-3x = -9

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

Simplifying
x = 3

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