8(a-2)=7-9(-a+4)

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Solution for 8(a-2)=7-9(-a+4) equation:


Simplifying
8(a + -2) = 7 + -9(-1a + 4)

Reorder the terms:
8(-2 + a) = 7 + -9(-1a + 4)
(-2 * 8 + a * 8) = 7 + -9(-1a + 4)
(-16 + 8a) = 7 + -9(-1a + 4)

Reorder the terms:
-16 + 8a = 7 + -9(4 + -1a)
-16 + 8a = 7 + (4 * -9 + -1a * -9)
-16 + 8a = 7 + (-36 + 9a)

Combine like terms: 7 + -36 = -29
-16 + 8a = -29 + 9a

Solving
-16 + 8a = -29 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
-16 + 8a + -9a = -29 + 9a + -9a

Combine like terms: 8a + -9a = -1a
-16 + -1a = -29 + 9a + -9a

Combine like terms: 9a + -9a = 0
-16 + -1a = -29 + 0
-16 + -1a = -29

Add '16' to each side of the equation.
-16 + 16 + -1a = -29 + 16

Combine like terms: -16 + 16 = 0
0 + -1a = -29 + 16
-1a = -29 + 16

Combine like terms: -29 + 16 = -13
-1a = -13

Divide each side by '-1'.
a = 13

Simplifying
a = 13

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