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

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


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

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

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

Solving
-7 + 7a = 6 + 6a

Solving for variable 'a'.

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

Add '-6a' to each side of the equation.
-7 + 7a + -6a = 6 + 6a + -6a

Combine like terms: 7a + -6a = 1a
-7 + 1a = 6 + 6a + -6a

Combine like terms: 6a + -6a = 0
-7 + 1a = 6 + 0
-7 + 1a = 6

Add '7' to each side of the equation.
-7 + 7 + 1a = 6 + 7

Combine like terms: -7 + 7 = 0
0 + 1a = 6 + 7
1a = 6 + 7

Combine like terms: 6 + 7 = 13
1a = 13

Divide each side by '1'.
a = 13

Simplifying
a = 13

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