(3a-7a)+11=-21

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Solution for (3a-7a)+11=-21 equation:


Simplifying
(3a + -7a) + 11 = -21

Combine like terms: 3a + -7a = -4a
(-4a) + 11 = -21
(-4a) + 11 = -21

Reorder the terms:
11 + (-4a) = -21

Solving
11 + (-4a) = -21

Solving for variable 'a'.

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

Add '-11' to each side of the equation.
11 + -11 + (-4a) = -21 + -11

Combine like terms: 11 + -11 = 0
0 + (-4a) = -21 + -11
(-4a) = -21 + -11

Combine like terms: -21 + -11 = -32
(-4a) = -32

Divide each side by '-4'.
a = 8

Simplifying
a = 8

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