4a + 2 = Answer
let a = 2
then Answer equals 4(2) + 2 = 8 + 2 = 10.
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a= -4
4a+3a-4 = 10 4a+3a = 10+4 7a = 14 a = 2
so 5a = -20 making a = -4
It is an equation in the single unknown variable, a. a = -4
a-16 = a/4+2 Multiply all terms by 4: 4a-64 = a+8 4a-a = 8+64 3a = 72 a = 24