Question

Solve each system by substitution

-4x + y = 6 () -5x + y = -2 () 3x - 8y = 24
-5x - y= 21 () -3x + 6y = -12 () -5x + y = -3

Answer 1

look, equation ii and vi are contradicting each other....

Explanation:

after eliminating those equation you can find the value of x and y.

y=-6

x=3