Question

ok last one plz help 7x-y=8
9x+y=24 using combination

Answer 1

since you already have opposite signs for y terms...they will cancel each other out when you add them

Answer 2

yeah i got that

Answer 3

7x - y =8
9x + y = 24
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16x = 32
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16 16
x= 2

Answer 4

now plug 2 in for x in one of the original equations to get y

Answer 5

7(2)-y=8
14-y=8
add y then subtract 8 or subtract 14 and divide by -1 on both sides
-y=-6
y = 6

Answer 6

the solution is (2,6)

Answer 7

k thx

Answer 8

welcome