7-8a=4a-17

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Solution for 7-8a=4a-17 equation:


Simplifying
7 + -8a = 4a + -17

Reorder the terms:
7 + -8a = -17 + 4a

Solving
7 + -8a = -17 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
7 + -8a + -4a = -17 + 4a + -4a

Combine like terms: -8a + -4a = -12a
7 + -12a = -17 + 4a + -4a

Combine like terms: 4a + -4a = 0
7 + -12a = -17 + 0
7 + -12a = -17

Add '-7' to each side of the equation.
7 + -7 + -12a = -17 + -7

Combine like terms: 7 + -7 = 0
0 + -12a = -17 + -7
-12a = -17 + -7

Combine like terms: -17 + -7 = -24
-12a = -24

Divide each side by '-12'.
a = 2

Simplifying
a = 2

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