75=87+3x

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Solution for 75=87+3x equation:


Simplifying
75 = 87 + 3x

Solving
75 = 87 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
75 + -3x = 87 + 3x + -3x

Combine like terms: 3x + -3x = 0
75 + -3x = 87 + 0
75 + -3x = 87

Add '-75' to each side of the equation.
75 + -75 + -3x = 87 + -75

Combine like terms: 75 + -75 = 0
0 + -3x = 87 + -75
-3x = 87 + -75

Combine like terms: 87 + -75 = 12
-3x = 12

Divide each side by '-3'.
x = -4

Simplifying
x = -4

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