7(a-8)+15=5(a-7)

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Solution for 7(a-8)+15=5(a-7) equation:


Simplifying
7(a + -8) + 15 = 5(a + -7)

Reorder the terms:
7(-8 + a) + 15 = 5(a + -7)
(-8 * 7 + a * 7) + 15 = 5(a + -7)
(-56 + 7a) + 15 = 5(a + -7)

Reorder the terms:
-56 + 15 + 7a = 5(a + -7)

Combine like terms: -56 + 15 = -41
-41 + 7a = 5(a + -7)

Reorder the terms:
-41 + 7a = 5(-7 + a)
-41 + 7a = (-7 * 5 + a * 5)
-41 + 7a = (-35 + 5a)

Solving
-41 + 7a = -35 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
-41 + 7a + -5a = -35 + 5a + -5a

Combine like terms: 7a + -5a = 2a
-41 + 2a = -35 + 5a + -5a

Combine like terms: 5a + -5a = 0
-41 + 2a = -35 + 0
-41 + 2a = -35

Add '41' to each side of the equation.
-41 + 41 + 2a = -35 + 41

Combine like terms: -41 + 41 = 0
0 + 2a = -35 + 41
2a = -35 + 41

Combine like terms: -35 + 41 = 6
2a = 6

Divide each side by '2'.
a = 3

Simplifying
a = 3

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