7a+3+21=91

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Solution for 7a+3+21=91 equation: 


Simplifying
7a + 3 + 21 = 91

Reorder the terms:
3 + 21 + 7a = 91

Combine like terms: 3 + 21 = 24
24 + 7a = 91

Solving
24 + 7a = 91

Solving for variable 'a'.

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

Add '-24' to each side of the equation.
24 + -24 + 7a = 91 + -24

Combine like terms: 24 + -24 = 0
0 + 7a = 91 + -24
7a = 91 + -24

Combine like terms: 91 + -24 = 67
7a = 67

Divide each side by '7'.
a = 9.571428571

Simplifying
a = 9.571428571

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