3.9x-13=1.7x+31

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Solution for 3.9x-13=1.7x+31 equation:


Simplifying
3.9x + -13 = 1.7x + 31

Reorder the terms:
-13 + 3.9x = 1.7x + 31

Reorder the terms:
-13 + 3.9x = 31 + 1.7x

Solving
-13 + 3.9x = 31 + 1.7x

Solving for variable 'x'.

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

Add '-1.7x' to each side of the equation.
-13 + 3.9x + -1.7x = 31 + 1.7x + -1.7x

Combine like terms: 3.9x + -1.7x = 2.2x
-13 + 2.2x = 31 + 1.7x + -1.7x

Combine like terms: 1.7x + -1.7x = 0.0
-13 + 2.2x = 31 + 0.0
-13 + 2.2x = 31

Add '13' to each side of the equation.
-13 + 13 + 2.2x = 31 + 13

Combine like terms: -13 + 13 = 0
0 + 2.2x = 31 + 13
2.2x = 31 + 13

Combine like terms: 31 + 13 = 44
2.2x = 44

Divide each side by '2.2'.
x = 20

Simplifying
x = 20

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