78=2x+15

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Solution for 78=2x+15 equation:


Simplifying
78 = 2x + 15

Reorder the terms:
78 = 15 + 2x

Solving
78 = 15 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
78 + -2x = 15 + 2x + -2x

Combine like terms: 2x + -2x = 0
78 + -2x = 15 + 0
78 + -2x = 15

Add '-78' to each side of the equation.
78 + -78 + -2x = 15 + -78

Combine like terms: 78 + -78 = 0
0 + -2x = 15 + -78
-2x = 15 + -78

Combine like terms: 15 + -78 = -63
-2x = -63

Divide each side by '-2'.
x = 31.5

Simplifying
x = 31.5

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