a+3+21=-1+3a+4

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Solution for a+3+21=-1+3a+4 equation:


Simplifying
a + 3 + 21 = -1 + 3a + 4

Reorder the terms:
3 + 21 + a = -1 + 3a + 4

Combine like terms: 3 + 21 = 24
24 + a = -1 + 3a + 4

Reorder the terms:
24 + a = -1 + 4 + 3a

Combine like terms: -1 + 4 = 3
24 + a = 3 + 3a

Solving
24 + a = 3 + 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.
24 + a + -3a = 3 + 3a + -3a

Combine like terms: a + -3a = -2a
24 + -2a = 3 + 3a + -3a

Combine like terms: 3a + -3a = 0
24 + -2a = 3 + 0
24 + -2a = 3

Add '-24' to each side of the equation.
24 + -24 + -2a = 3 + -24

Combine like terms: 24 + -24 = 0
0 + -2a = 3 + -24
-2a = 3 + -24

Combine like terms: 3 + -24 = -21
-2a = -21

Divide each side by '-2'.
a = 10.5

Simplifying
a = 10.5

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