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

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


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

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

Combine like terms: 6 + 7 = 13
13 + -7a = -3(3 + a)
13 + -7a = (3 * -3 + a * -3)
13 + -7a = (-9 + -3a)

Solving
13 + -7a = -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.
13 + -7a + 3a = -9 + -3a + 3a

Combine like terms: -7a + 3a = -4a
13 + -4a = -9 + -3a + 3a

Combine like terms: -3a + 3a = 0
13 + -4a = -9 + 0
13 + -4a = -9

Add '-13' to each side of the equation.
13 + -13 + -4a = -9 + -13

Combine like terms: 13 + -13 = 0
0 + -4a = -9 + -13
-4a = -9 + -13

Combine like terms: -9 + -13 = -22
-4a = -22

Divide each side by '-4'.
a = 5.5

Simplifying
a = 5.5

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