Answer:
cef
Step-by-step explanation:
That would be the last choice. Opposite meaning different sign
Xz+y+1=z. given
y+1=z-xz. subtraction property of equality
y+1=z(1-x) distributive property of multiplication over addition/factoring
(1+y)/(1-x) = z division property of required, given x≠1
2 and 4
Step-by-step explanation:
This image shows an example on corresponding angles.