12-7x=77-42x

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Solution for 12-7x=77-42x equation:


Simplifying
12 + -7x = 77 + -42x

Solving
12 + -7x = 77 + -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.
12 + -7x + 42x = 77 + -42x + 42x

Combine like terms: -7x + 42x = 35x
12 + 35x = 77 + -42x + 42x

Combine like terms: -42x + 42x = 0
12 + 35x = 77 + 0
12 + 35x = 77

Add '-12' to each side of the equation.
12 + -12 + 35x = 77 + -12

Combine like terms: 12 + -12 = 0
0 + 35x = 77 + -12
35x = 77 + -12

Combine like terms: 77 + -12 = 65
35x = 65

Divide each side by '35'.
x = 1.857142857

Simplifying
x = 1.857142857

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