45=17-7a

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Solution for 45=17-7a equation:


Simplifying
45 = 17 + -7a

Solving
45 = 17 + -7a

Solving for variable 'a'.

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

Add '7a' to each side of the equation.
45 + 7a = 17 + -7a + 7a

Combine like terms: -7a + 7a = 0
45 + 7a = 17 + 0
45 + 7a = 17

Add '-45' to each side of the equation.
45 + -45 + 7a = 17 + -45

Combine like terms: 45 + -45 = 0
0 + 7a = 17 + -45
7a = 17 + -45

Combine like terms: 17 + -45 = -28
7a = -28

Divide each side by '7'.
a = -4

Simplifying
a = -4

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