Answer:
66
Step-by-step explanation:
71+43=114
180-114=66
2(2x + 3) + 2(x=1)
if they give you x just sub in
Answer:
D
Step-by-step explanation:
Plug (5, 7) & (8, 13) into each equations and see which one of them makes mathematical sense. You'll find out that y=2x-3 is the right answer.
Solve the second equation for y so that you can substitute it in for y in the first equation..
y = 5x - 4
Substitute:
3x + (5x - 4) = 1
