-9(a+4)-4(a+3)=

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Solution for -9(a+4)-4(a+3)= equation:


Simplifying
-9(a + 4) + -4(a + 3) = 0

Reorder the terms:
-9(4 + a) + -4(a + 3) = 0
(4 * -9 + a * -9) + -4(a + 3) = 0
(-36 + -9a) + -4(a + 3) = 0

Reorder the terms:
-36 + -9a + -4(3 + a) = 0
-36 + -9a + (3 * -4 + a * -4) = 0
-36 + -9a + (-12 + -4a) = 0

Reorder the terms:
-36 + -12 + -9a + -4a = 0

Combine like terms: -36 + -12 = -48
-48 + -9a + -4a = 0

Combine like terms: -9a + -4a = -13a
-48 + -13a = 0

Solving
-48 + -13a = 0

Solving for variable 'a'.

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

Add '48' to each side of the equation.
-48 + 48 + -13a = 0 + 48

Combine like terms: -48 + 48 = 0
0 + -13a = 0 + 48
-13a = 0 + 48

Combine like terms: 0 + 48 = 48
-13a = 48

Divide each side by '-13'.
a = -3.692307692

Simplifying
a = -3.692307692

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