42=3(5x+4)

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Solution for 42=3(5x+4) equation:


Simplifying
42 = 3(5x + 4)

Reorder the terms:
42 = 3(4 + 5x)
42 = (4 * 3 + 5x * 3)
42 = (12 + 15x)

Solving
42 = 12 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
42 + -15x = 12 + 15x + -15x

Combine like terms: 15x + -15x = 0
42 + -15x = 12 + 0
42 + -15x = 12

Add '-42' to each side of the equation.
42 + -42 + -15x = 12 + -42

Combine like terms: 42 + -42 = 0
0 + -15x = 12 + -42
-15x = 12 + -42

Combine like terms: 12 + -42 = -30
-15x = -30

Divide each side by '-15'.
x = 2

Simplifying
x = 2

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