3(8)-7=x+9

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Solution for 3(8)-7=x+9 equation:


Simplifying
3(8) + -7 = x + 9

Multiply 3 * 8
24 + -7 = x + 9

Combine like terms: 24 + -7 = 17
17 = x + 9

Reorder the terms:
17 = 9 + x

Solving
17 = 9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
17 + -1x = 9 + x + -1x

Combine like terms: x + -1x = 0
17 + -1x = 9 + 0
17 + -1x = 9

Add '-17' to each side of the equation.
17 + -17 + -1x = 9 + -17

Combine like terms: 17 + -17 = 0
0 + -1x = 9 + -17
-1x = 9 + -17

Combine like terms: 9 + -17 = -8
-1x = -8

Divide each side by '-1'.
x = 8

Simplifying
x = 8

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