Question

x-y=4
2x+7y=35

Using substitution. Steps would be most helpful :) Thanks.

Answer 1

rewrite first as x=4+y now substitute this in second (step 1)
2(4+y) + 7y=35 now solve for y
8 + 2y +7y = 35
9y=35-8
9y=27
y=3

Answer 2

solve for x
x-3=4
x=7
Was that step by step enough for u aboveit?

Answer 3

The value found for y was substituted in the x-y=4

Answer 4

Thanks for all the help guys :D