7a+12=4a+45

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Solution for 7a+12=4a+45 equation:


Simplifying
7a + 12 = 4a + 45

Reorder the terms:
12 + 7a = 4a + 45

Reorder the terms:
12 + 7a = 45 + 4a

Solving
12 + 7a = 45 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
12 + 7a + -4a = 45 + 4a + -4a

Combine like terms: 7a + -4a = 3a
12 + 3a = 45 + 4a + -4a

Combine like terms: 4a + -4a = 0
12 + 3a = 45 + 0
12 + 3a = 45

Add '-12' to each side of the equation.
12 + -12 + 3a = 45 + -12

Combine like terms: 12 + -12 = 0
0 + 3a = 45 + -12
3a = 45 + -12

Combine like terms: 45 + -12 = 33
3a = 33

Divide each side by '3'.
a = 11

Simplifying
a = 11

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