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

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


Simplifying
3(a + -7) = 2(2 + -1a)

Reorder the terms:
3(-7 + a) = 2(2 + -1a)
(-7 * 3 + a * 3) = 2(2 + -1a)
(-21 + 3a) = 2(2 + -1a)
-21 + 3a = (2 * 2 + -1a * 2)
-21 + 3a = (4 + -2a)

Solving
-21 + 3a = 4 + -2a

Solving for variable 'a'.

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

Add '2a' to each side of the equation.
-21 + 3a + 2a = 4 + -2a + 2a

Combine like terms: 3a + 2a = 5a
-21 + 5a = 4 + -2a + 2a

Combine like terms: -2a + 2a = 0
-21 + 5a = 4 + 0
-21 + 5a = 4

Add '21' to each side of the equation.
-21 + 21 + 5a = 4 + 21

Combine like terms: -21 + 21 = 0
0 + 5a = 4 + 21
5a = 4 + 21

Combine like terms: 4 + 21 = 25
5a = 25

Divide each side by '5'.
a = 5

Simplifying
a = 5

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