1+7a=3(a-5)

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Solution for 1+7a=3(a-5) equation:


Simplifying
1 + 7a = 3(a + -5)

Reorder the terms:
1 + 7a = 3(-5 + a)
1 + 7a = (-5 * 3 + a * 3)
1 + 7a = (-15 + 3a)

Solving
1 + 7a = -15 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
1 + 7a + -3a = -15 + 3a + -3a

Combine like terms: 7a + -3a = 4a
1 + 4a = -15 + 3a + -3a

Combine like terms: 3a + -3a = 0
1 + 4a = -15 + 0
1 + 4a = -15

Add '-1' to each side of the equation.
1 + -1 + 4a = -15 + -1

Combine like terms: 1 + -1 = 0
0 + 4a = -15 + -1
4a = -15 + -1

Combine like terms: -15 + -1 = -16
4a = -16

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

Simplifying
a = -4

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