7-3x-x=17

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Solution for 7-3x-x=17 equation:


Simplifying
7 + -3x + -1x = 17

Combine like terms: -3x + -1x = -4x
7 + -4x = 17

Solving
7 + -4x = 17

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + -4x = 17 + -7

Combine like terms: 7 + -7 = 0
0 + -4x = 17 + -7
-4x = 17 + -7

Combine like terms: 17 + -7 = 10
-4x = 10

Divide each side by '-4'.
x = -2.5

Simplifying
x = -2.5

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