-53=5(a+3)+3(a-4)

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Solution for -53=5(a+3)+3(a-4) equation:


Simplifying
-53 = 5(a + 3) + 3(a + -4)

Reorder the terms:
-53 = 5(3 + a) + 3(a + -4)
-53 = (3 * 5 + a * 5) + 3(a + -4)
-53 = (15 + 5a) + 3(a + -4)

Reorder the terms:
-53 = 15 + 5a + 3(-4 + a)
-53 = 15 + 5a + (-4 * 3 + a * 3)
-53 = 15 + 5a + (-12 + 3a)

Reorder the terms:
-53 = 15 + -12 + 5a + 3a

Combine like terms: 15 + -12 = 3
-53 = 3 + 5a + 3a

Combine like terms: 5a + 3a = 8a
-53 = 3 + 8a

Solving
-53 = 3 + 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
-53 + -8a = 3 + 8a + -8a

Combine like terms: 8a + -8a = 0
-53 + -8a = 3 + 0
-53 + -8a = 3

Add '53' to each side of the equation.
-53 + 53 + -8a = 3 + 53

Combine like terms: -53 + 53 = 0
0 + -8a = 3 + 53
-8a = 3 + 53

Combine like terms: 3 + 53 = 56
-8a = 56

Divide each side by '-8'.
a = -7

Simplifying
a = -7

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