7(a+5)=2a-15

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Solution for 7(a+5)=2a-15 equation:


Simplifying
7(a + 5) = 2a + -15

Reorder the terms:
7(5 + a) = 2a + -15
(5 * 7 + a * 7) = 2a + -15
(35 + 7a) = 2a + -15

Reorder the terms:
35 + 7a = -15 + 2a

Solving
35 + 7a = -15 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
35 + 7a + -2a = -15 + 2a + -2a

Combine like terms: 7a + -2a = 5a
35 + 5a = -15 + 2a + -2a

Combine like terms: 2a + -2a = 0
35 + 5a = -15 + 0
35 + 5a = -15

Add '-35' to each side of the equation.
35 + -35 + 5a = -15 + -35

Combine like terms: 35 + -35 = 0
0 + 5a = -15 + -35
5a = -15 + -35

Combine like terms: -15 + -35 = -50
5a = -50

Divide each side by '5'.
a = -10

Simplifying
a = -10

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