23-4a=11+21

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Solution for 23-4a=11+21 equation: 


Simplifying
23 + -4a = 11 + 21

Combine like terms: 11 + 21 = 32
23 + -4a = 32

Solving
23 + -4a = 32

Solving for variable 'a'.

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

Add '-23' to each side of the equation.
23 + -23 + -4a = 32 + -23

Combine like terms: 23 + -23 = 0
0 + -4a = 32 + -23
-4a = 32 + -23

Combine like terms: 32 + -23 = 9
-4a = 9

Divide each side by '-4'.
a = -2.25

Simplifying
a = -2.25

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