2(a-7)=3a+9

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Solution for 2(a-7)=3a+9 equation:


Simplifying
2(a + -7) = 3a + 9

Reorder the terms:
2(-7 + a) = 3a + 9
(-7 * 2 + a * 2) = 3a + 9
(-14 + 2a) = 3a + 9

Reorder the terms:
-14 + 2a = 9 + 3a

Solving
-14 + 2a = 9 + 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.
-14 + 2a + -3a = 9 + 3a + -3a

Combine like terms: 2a + -3a = -1a
-14 + -1a = 9 + 3a + -3a

Combine like terms: 3a + -3a = 0
-14 + -1a = 9 + 0
-14 + -1a = 9

Add '14' to each side of the equation.
-14 + 14 + -1a = 9 + 14

Combine like terms: -14 + 14 = 0
0 + -1a = 9 + 14
-1a = 9 + 14

Combine like terms: 9 + 14 = 23
-1a = 23

Divide each side by '-1'.
a = -23

Simplifying
a = -23

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