4.2-3.5x=7.7

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Solution for 4.2-3.5x=7.7 equation: 


Simplifying
4.2 + -3.5x = 7.7

Solving
4.2 + -3.5x = 7.7

Solving for variable 'x'.

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

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -3.5x = 7.7 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -3.5x = 7.7 + -4.2
-3.5x = 7.7 + -4.2

Combine like terms: 7.7 + -4.2 = 3.5
-3.5x = 3.5

Divide each side by '-3.5'.
x = -1

Simplifying
x = -1

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