78+x-3+4x=180

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Solution for 78+x-3+4x=180 equation:


Simplifying
78 + x + -3 + 4x = 180

Reorder the terms:
78 + -3 + x + 4x = 180

Combine like terms: 78 + -3 = 75
75 + x + 4x = 180

Combine like terms: x + 4x = 5x
75 + 5x = 180

Solving
75 + 5x = 180

Solving for variable 'x'.

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

Add '-75' to each side of the equation.
75 + -75 + 5x = 180 + -75

Combine like terms: 75 + -75 = 0
0 + 5x = 180 + -75
5x = 180 + -75

Combine like terms: 180 + -75 = 105
5x = 105

Divide each side by '5'.
x = 21

Simplifying
x = 21

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