7(3a-2)=7+6(2a+7)

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Solution for 7(3a-2)=7+6(2a+7) equation:


Simplifying
7(3a + -2) = 7 + 6(2a + 7)

Reorder the terms:
7(-2 + 3a) = 7 + 6(2a + 7)
(-2 * 7 + 3a * 7) = 7 + 6(2a + 7)
(-14 + 21a) = 7 + 6(2a + 7)

Reorder the terms:
-14 + 21a = 7 + 6(7 + 2a)
-14 + 21a = 7 + (7 * 6 + 2a * 6)
-14 + 21a = 7 + (42 + 12a)

Combine like terms: 7 + 42 = 49
-14 + 21a = 49 + 12a

Solving
-14 + 21a = 49 + 12a

Solving for variable 'a'.

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

Add '-12a' to each side of the equation.
-14 + 21a + -12a = 49 + 12a + -12a

Combine like terms: 21a + -12a = 9a
-14 + 9a = 49 + 12a + -12a

Combine like terms: 12a + -12a = 0
-14 + 9a = 49 + 0
-14 + 9a = 49

Add '14' to each side of the equation.
-14 + 14 + 9a = 49 + 14

Combine like terms: -14 + 14 = 0
0 + 9a = 49 + 14
9a = 49 + 14

Combine like terms: 49 + 14 = 63
9a = 63

Divide each side by '9'.
a = 7

Simplifying
a = 7

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