7a+3(a-1)=-33

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Solution for 7a+3(a-1)=-33 equation:


Simplifying
7a + 3(a + -1) = -33

Reorder the terms:
7a + 3(-1 + a) = -33
7a + (-1 * 3 + a * 3) = -33
7a + (-3 + 3a) = -33

Reorder the terms:
-3 + 7a + 3a = -33

Combine like terms: 7a + 3a = 10a
-3 + 10a = -33

Solving
-3 + 10a = -33

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + 3 + 10a = -33 + 3

Combine like terms: -3 + 3 = 0
0 + 10a = -33 + 3
10a = -33 + 3

Combine like terms: -33 + 3 = -30
10a = -30

Divide each side by '10'.
a = -3

Simplifying
a = -3

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