3X-42=8(X+1)

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Solution for 3X-42=8(X+1) equation:


Simplifying
3X + -42 = 8(X + 1)

Reorder the terms:
-42 + 3X = 8(X + 1)

Reorder the terms:
-42 + 3X = 8(1 + X)
-42 + 3X = (1 * 8 + X * 8)
-42 + 3X = (8 + 8X)

Solving
-42 + 3X = 8 + 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 = 8 + 8X + -8X

Combine like terms: 3X + -8X = -5X
-42 + -5X = 8 + 8X + -8X

Combine like terms: 8X + -8X = 0
-42 + -5X = 8 + 0
-42 + -5X = 8

Add '42' to each side of the equation.
-42 + 42 + -5X = 8 + 42

Combine like terms: -42 + 42 = 0
0 + -5X = 8 + 42
-5X = 8 + 42

Combine like terms: 8 + 42 = 50
-5X = 50

Divide each side by '-5'.
X = -10

Simplifying
X = -10

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