I qould say the answer is b. 59.
X+y=2 (label equation one)
x-y=4 (label equation two)
y=-x+2 (equation one rearranged, label this equation equation three)
sub 3 into 2
x-(-x+2)=4
x+x-2=4
2x-2=4
2x=6
x=3
sub x=3 into equation one
3+y=2
y=-1
therefore x=3 and y=-1
Answer:
y = 4
Step-by-step explanation:
6y + 30 = 54
subtract 30 from each side
6y = 24
divide each side by 6
y = 4
Are you solving for x or y
y= 24x x= y/24
Make y = mx = b
y = -x - 1
Slope is -1
Perpendicular = opposite sign and reciprocal slope
1/1 = 1, slope would be 1
Solution: slope = 1