
Arturo O. answered 09/11/16
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7a - 17 = 4a + 1
Perform algebraic operations to get "a" by itself on one side:
Subtract 4a from both sides and get
3a - 17 = 1
Add 17 to both sides and get
3a = 18
Divide by 3 on both sides and get
a = 6