a-7=7(6-3a)-5

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Solution for a-7=7(6-3a)-5 equation:


Simplifying
a + -7 = 7(6 + -3a) + -5

Reorder the terms:
-7 + a = 7(6 + -3a) + -5
-7 + a = (6 * 7 + -3a * 7) + -5
-7 + a = (42 + -21a) + -5

Reorder the terms:
-7 + a = 42 + -5 + -21a

Combine like terms: 42 + -5 = 37
-7 + a = 37 + -21a

Solving
-7 + a = 37 + -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.
-7 + a + 21a = 37 + -21a + 21a

Combine like terms: a + 21a = 22a
-7 + 22a = 37 + -21a + 21a

Combine like terms: -21a + 21a = 0
-7 + 22a = 37 + 0
-7 + 22a = 37

Add '7' to each side of the equation.
-7 + 7 + 22a = 37 + 7

Combine like terms: -7 + 7 = 0
0 + 22a = 37 + 7
22a = 37 + 7

Combine like terms: 37 + 7 = 44
22a = 44

Divide each side by '22'.
a = 2

Simplifying
a = 2

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