45=-3(8-a)-8(5a-4)

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Solution for 45=-3(8-a)-8(5a-4) equation:


Simplifying
45 = -3(8 + -1a) + -8(5a + -4)
45 = (8 * -3 + -1a * -3) + -8(5a + -4)
45 = (-24 + 3a) + -8(5a + -4)

Reorder the terms:
45 = -24 + 3a + -8(-4 + 5a)
45 = -24 + 3a + (-4 * -8 + 5a * -8)
45 = -24 + 3a + (32 + -40a)

Reorder the terms:
45 = -24 + 32 + 3a + -40a

Combine like terms: -24 + 32 = 8
45 = 8 + 3a + -40a

Combine like terms: 3a + -40a = -37a
45 = 8 + -37a

Solving
45 = 8 + -37a

Solving for variable 'a'.

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

Add '37a' to each side of the equation.
45 + 37a = 8 + -37a + 37a

Combine like terms: -37a + 37a = 0
45 + 37a = 8 + 0
45 + 37a = 8

Add '-45' to each side of the equation.
45 + -45 + 37a = 8 + -45

Combine like terms: 45 + -45 = 0
0 + 37a = 8 + -45
37a = 8 + -45

Combine like terms: 8 + -45 = -37
37a = -37

Divide each side by '37'.
a = -1

Simplifying
a = -1

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