12+5=7x-4

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Solution for 12+5=7x-4 equation:


Simplifying
12 + 5 = 7x + -4

Combine like terms: 12 + 5 = 17
17 = 7x + -4

Reorder the terms:
17 = -4 + 7x

Solving
17 = -4 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
17 + -7x = -4 + 7x + -7x

Combine like terms: 7x + -7x = 0
17 + -7x = -4 + 0
17 + -7x = -4

Add '-17' to each side of the equation.
17 + -17 + -7x = -4 + -17

Combine like terms: 17 + -17 = 0
0 + -7x = -4 + -17
-7x = -4 + -17

Combine like terms: -4 + -17 = -21
-7x = -21

Divide each side by '-7'.
x = 3

Simplifying
x = 3

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