3x+42=8(x+4)

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Solution for 3x+42=8(x+4) equation:


Simplifying
3x + 42 = 8(x + 4)

Reorder the terms:
42 + 3x = 8(x + 4)

Reorder the terms:
42 + 3x = 8(4 + x)
42 + 3x = (4 * 8 + x * 8)
42 + 3x = (32 + 8x)

Solving
42 + 3x = 32 + 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.
42 + 3x + -8x = 32 + 8x + -8x

Combine like terms: 3x + -8x = -5x
42 + -5x = 32 + 8x + -8x

Combine like terms: 8x + -8x = 0
42 + -5x = 32 + 0
42 + -5x = 32

Add '-42' to each side of the equation.
42 + -42 + -5x = 32 + -42

Combine like terms: 42 + -42 = 0
0 + -5x = 32 + -42
-5x = 32 + -42

Combine like terms: 32 + -42 = -10
-5x = -10

Divide each side by '-5'.
x = 2

Simplifying
x = 2

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