7(a-3)=8a-2

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Solution for 7(a-3)=8a-2 equation:


Simplifying
7(a + -3) = 8a + -2

Reorder the terms:
7(-3 + a) = 8a + -2
(-3 * 7 + a * 7) = 8a + -2
(-21 + 7a) = 8a + -2

Reorder the terms:
-21 + 7a = -2 + 8a

Solving
-21 + 7a = -2 + 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
-21 + 7a + -8a = -2 + 8a + -8a

Combine like terms: 7a + -8a = -1a
-21 + -1a = -2 + 8a + -8a

Combine like terms: 8a + -8a = 0
-21 + -1a = -2 + 0
-21 + -1a = -2

Add '21' to each side of the equation.
-21 + 21 + -1a = -2 + 21

Combine like terms: -21 + 21 = 0
0 + -1a = -2 + 21
-1a = -2 + 21

Combine like terms: -2 + 21 = 19
-1a = 19

Divide each side by '-1'.
a = -19

Simplifying
a = -19

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