9-8(3a+5)=-7(4a+5)

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Solution for 9-8(3a+5)=-7(4a+5) equation:


Simplifying
9 + -8(3a + 5) = -7(4a + 5)

Reorder the terms:
9 + -8(5 + 3a) = -7(4a + 5)
9 + (5 * -8 + 3a * -8) = -7(4a + 5)
9 + (-40 + -24a) = -7(4a + 5)

Combine like terms: 9 + -40 = -31
-31 + -24a = -7(4a + 5)

Reorder the terms:
-31 + -24a = -7(5 + 4a)
-31 + -24a = (5 * -7 + 4a * -7)
-31 + -24a = (-35 + -28a)

Solving
-31 + -24a = -35 + -28a

Solving for variable 'a'.

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

Add '28a' to each side of the equation.
-31 + -24a + 28a = -35 + -28a + 28a

Combine like terms: -24a + 28a = 4a
-31 + 4a = -35 + -28a + 28a

Combine like terms: -28a + 28a = 0
-31 + 4a = -35 + 0
-31 + 4a = -35

Add '31' to each side of the equation.
-31 + 31 + 4a = -35 + 31

Combine like terms: -31 + 31 = 0
0 + 4a = -35 + 31
4a = -35 + 31

Combine like terms: -35 + 31 = -4
4a = -4

Divide each side by '4'.
a = -1

Simplifying
a = -1

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