42x-49+12x-20=5x+78

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Solution for 42x-49+12x-20=5x+78 equation:


Simplifying
42x + -49 + 12x + -20 = 5x + 78

Reorder the terms:
-49 + -20 + 42x + 12x = 5x + 78

Combine like terms: -49 + -20 = -69
-69 + 42x + 12x = 5x + 78

Combine like terms: 42x + 12x = 54x
-69 + 54x = 5x + 78

Reorder the terms:
-69 + 54x = 78 + 5x

Solving
-69 + 54x = 78 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-69 + 54x + -5x = 78 + 5x + -5x

Combine like terms: 54x + -5x = 49x
-69 + 49x = 78 + 5x + -5x

Combine like terms: 5x + -5x = 0
-69 + 49x = 78 + 0
-69 + 49x = 78

Add '69' to each side of the equation.
-69 + 69 + 49x = 78 + 69

Combine like terms: -69 + 69 = 0
0 + 49x = 78 + 69
49x = 78 + 69

Combine like terms: 78 + 69 = 147
49x = 147

Divide each side by '49'.
x = 3

Simplifying
x = 3

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