-4(8a+12)+7(a+4)=x

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Solution for -4(8a+12)+7(a+4)=x equation:


Simplifying
-4(8a + 12) + 7(a + 4) = x

Reorder the terms:
-4(12 + 8a) + 7(a + 4) = x
(12 * -4 + 8a * -4) + 7(a + 4) = x
(-48 + -32a) + 7(a + 4) = x

Reorder the terms:
-48 + -32a + 7(4 + a) = x
-48 + -32a + (4 * 7 + a * 7) = x
-48 + -32a + (28 + 7a) = x

Reorder the terms:
-48 + 28 + -32a + 7a = x

Combine like terms: -48 + 28 = -20
-20 + -32a + 7a = x

Combine like terms: -32a + 7a = -25a
-20 + -25a = x

Solving
-20 + -25a = x

Solving for variable 'a'.

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

Add '20' to each side of the equation.
-20 + 20 + -25a = 20 + x

Combine like terms: -20 + 20 = 0
0 + -25a = 20 + x
-25a = 20 + x

Divide each side by '-25'.
a = -0.8 + -0.04x

Simplifying
a = -0.8 + -0.04x

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