You should use your calculator for such simple sums. It is far quicker and involves fewer key depressions than posting the question on WA. But since you seem unable to carry out even this simple task, the answer is 19.
It equals 24.
It doesn't ! -7 plus -5 equals -12 ! -7 plus 5 equals -2
20
(5, 1)
(-1, 5)
(-1, 5)
1227
89
3x + 2 + 2x = 7; 3x + 2x = 5x, so 5x + 2 = 7; 7-2=5, so 5x=5. 5x divided by 5 and 5 divided by 5 equals 1, so x equals 1.
7 x 1?
1
59