7(a-3)-3(a-2)=5

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Solution for 7(a-3)-3(a-2)=5 equation:


Simplifying
7(a + -3) + -3(a + -2) = 5

Reorder the terms:
7(-3 + a) + -3(a + -2) = 5
(-3 * 7 + a * 7) + -3(a + -2) = 5
(-21 + 7a) + -3(a + -2) = 5

Reorder the terms:
-21 + 7a + -3(-2 + a) = 5
-21 + 7a + (-2 * -3 + a * -3) = 5
-21 + 7a + (6 + -3a) = 5

Reorder the terms:
-21 + 6 + 7a + -3a = 5

Combine like terms: -21 + 6 = -15
-15 + 7a + -3a = 5

Combine like terms: 7a + -3a = 4a
-15 + 4a = 5

Solving
-15 + 4a = 5

Solving for variable 'a'.

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

Add '15' to each side of the equation.
-15 + 15 + 4a = 5 + 15

Combine like terms: -15 + 15 = 0
0 + 4a = 5 + 15
4a = 5 + 15

Combine like terms: 5 + 15 = 20
4a = 20

Divide each side by '4'.
a = 5

Simplifying
a = 5

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