10x+17-7x-2=78

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Solution for 10x+17-7x-2=78 equation:


Simplifying
10x + 17 + -7x + -2 = 78

Reorder the terms:
17 + -2 + 10x + -7x = 78

Combine like terms: 17 + -2 = 15
15 + 10x + -7x = 78

Combine like terms: 10x + -7x = 3x
15 + 3x = 78

Solving
15 + 3x = 78

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 3x = 78 + -15

Combine like terms: 15 + -15 = 0
0 + 3x = 78 + -15
3x = 78 + -15

Combine like terms: 78 + -15 = 63
3x = 63

Divide each side by '3'.
x = 21

Simplifying
x = 21

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