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

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


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

Reorder the terms:
7(-7 + a) = -3(a + 3)
(-7 * 7 + a * 7) = -3(a + 3)
(-49 + 7a) = -3(a + 3)

Reorder the terms:
-49 + 7a = -3(3 + a)
-49 + 7a = (3 * -3 + a * -3)
-49 + 7a = (-9 + -3a)

Solving
-49 + 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.
-49 + 7a + 3a = -9 + -3a + 3a

Combine like terms: 7a + 3a = 10a
-49 + 10a = -9 + -3a + 3a

Combine like terms: -3a + 3a = 0
-49 + 10a = -9 + 0
-49 + 10a = -9

Add '49' to each side of the equation.
-49 + 49 + 10a = -9 + 49

Combine like terms: -49 + 49 = 0
0 + 10a = -9 + 49
10a = -9 + 49

Combine like terms: -9 + 49 = 40
10a = 40

Divide each side by '10'.
a = 4

Simplifying
a = 4

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