-9=-7a+6(a-3)

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Solution for -9=-7a+6(a-3) equation:


Simplifying
-9 = -7a + 6(a + -3)

Reorder the terms:
-9 = -7a + 6(-3 + a)
-9 = -7a + (-3 * 6 + a * 6)
-9 = -7a + (-18 + 6a)

Reorder the terms:
-9 = -18 + -7a + 6a

Combine like terms: -7a + 6a = -1a
-9 = -18 + -1a

Solving
-9 = -18 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
-9 + a = -18 + -1a + a

Combine like terms: -1a + a = 0
-9 + a = -18 + 0
-9 + a = -18

Add '9' to each side of the equation.
-9 + 9 + a = -18 + 9

Combine like terms: -9 + 9 = 0
0 + a = -18 + 9
a = -18 + 9

Combine like terms: -18 + 9 = -9
a = -9

Simplifying
a = -9

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