Answer:
Step-by-step explanation:
(x,y) (1,-1)
y=3-4x
-x+2y=-3
x+2(3-4x)=-3
x=1
y=3-4*1
y=-1
-72
3a+7b>2b-8b
3a>2b-8b-7b
3a>2b-15b
3a>-13b
a>-13b/3
Answer: 3 and 2
Equations 1 & 3 are correct.
Explanation:
Equation 2's actual answer is -8, and Equation 4's actual answer is positive 7.
