3(4x+20)=42x

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Solution for 3(4x+20)=42x equation:


Simplifying
3(4x + 20) = 42x

Reorder the terms:
3(20 + 4x) = 42x
(20 * 3 + 4x * 3) = 42x
(60 + 12x) = 42x

Solving
60 + 12x = 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.
60 + 12x + -42x = 42x + -42x

Combine like terms: 12x + -42x = -30x
60 + -30x = 42x + -42x

Combine like terms: 42x + -42x = 0
60 + -30x = 0

Add '-60' to each side of the equation.
60 + -60 + -30x = 0 + -60

Combine like terms: 60 + -60 = 0
0 + -30x = 0 + -60
-30x = 0 + -60

Combine like terms: 0 + -60 = -60
-30x = -60

Divide each side by '-30'.
x = 2

Simplifying
x = 2

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