-6a-15=3(a-7)

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Solution for -6a-15=3(a-7) equation:


Simplifying
-6a + -15 = 3(a + -7)

Reorder the terms:
-15 + -6a = 3(a + -7)

Reorder the terms:
-15 + -6a = 3(-7 + a)
-15 + -6a = (-7 * 3 + a * 3)
-15 + -6a = (-21 + 3a)

Solving
-15 + -6a = -21 + 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.
-15 + -6a + -3a = -21 + 3a + -3a

Combine like terms: -6a + -3a = -9a
-15 + -9a = -21 + 3a + -3a

Combine like terms: 3a + -3a = 0
-15 + -9a = -21 + 0
-15 + -9a = -21

Add '15' to each side of the equation.
-15 + 15 + -9a = -21 + 15

Combine like terms: -15 + 15 = 0
0 + -9a = -21 + 15
-9a = -21 + 15

Combine like terms: -21 + 15 = -6
-9a = -6

Divide each side by '-9'.
a = 0.6666666667

Simplifying
a = 0.6666666667

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