4m-7+3a=21

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Solution for 4m-7+3a=21 equation:


Simplifying
4m + -7 + 3a = 21

Reorder the terms:
-7 + 3a + 4m = 21

Solving
-7 + 3a + 4m = 21

Solving for variable 'a'.

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

Add '7' to each side of the equation.
-7 + 3a + 7 + 4m = 21 + 7

Reorder the terms:
-7 + 7 + 3a + 4m = 21 + 7

Combine like terms: -7 + 7 = 0
0 + 3a + 4m = 21 + 7
3a + 4m = 21 + 7

Combine like terms: 21 + 7 = 28
3a + 4m = 28

Add '-4m' to each side of the equation.
3a + 4m + -4m = 28 + -4m

Combine like terms: 4m + -4m = 0
3a + 0 = 28 + -4m
3a = 28 + -4m

Divide each side by '3'.
a = 9.333333333 + -1.333333333m

Simplifying
a = 9.333333333 + -1.333333333m

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