7A+9=3A+40

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Solution for 7A+9=3A+40 equation:


Simplifying
7A + 9 = 3A + 40

Reorder the terms:
9 + 7A = 3A + 40

Reorder the terms:
9 + 7A = 40 + 3A

Solving
9 + 7A = 40 + 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.
9 + 7A + -3A = 40 + 3A + -3A

Combine like terms: 7A + -3A = 4A
9 + 4A = 40 + 3A + -3A

Combine like terms: 3A + -3A = 0
9 + 4A = 40 + 0
9 + 4A = 40

Add '-9' to each side of the equation.
9 + -9 + 4A = 40 + -9

Combine like terms: 9 + -9 = 0
0 + 4A = 40 + -9
4A = 40 + -9

Combine like terms: 40 + -9 = 31
4A = 31

Divide each side by '4'.
A = 7.75

Simplifying
A = 7.75

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