3(a-3)+6=7(3a+1)

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Solution for 3(a-3)+6=7(3a+1) equation:


Simplifying
3(a + -3) + 6 = 7(3a + 1)

Reorder the terms:
3(-3 + a) + 6 = 7(3a + 1)
(-3 * 3 + a * 3) + 6 = 7(3a + 1)
(-9 + 3a) + 6 = 7(3a + 1)

Reorder the terms:
-9 + 6 + 3a = 7(3a + 1)

Combine like terms: -9 + 6 = -3
-3 + 3a = 7(3a + 1)

Reorder the terms:
-3 + 3a = 7(1 + 3a)
-3 + 3a = (1 * 7 + 3a * 7)
-3 + 3a = (7 + 21a)

Solving
-3 + 3a = 7 + 21a

Solving for variable 'a'.

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

Add '-21a' to each side of the equation.
-3 + 3a + -21a = 7 + 21a + -21a

Combine like terms: 3a + -21a = -18a
-3 + -18a = 7 + 21a + -21a

Combine like terms: 21a + -21a = 0
-3 + -18a = 7 + 0
-3 + -18a = 7

Add '3' to each side of the equation.
-3 + 3 + -18a = 7 + 3

Combine like terms: -3 + 3 = 0
0 + -18a = 7 + 3
-18a = 7 + 3

Combine like terms: 7 + 3 = 10
-18a = 10

Divide each side by '-18'.
a = -0.5555555556

Simplifying
a = -0.5555555556

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