Question

Y= 10x +2 and -5x + 4y=-27

Answer 1

x = -1

y = -8

Explanation:

if y=10x+2 then we can substitute that expression in for 'y' in the second equation to solve for 'x':

-5x + 4(10x+2) = -27

-5x + 40x + 8 = -27

35x + 8 = -27

35x = -35

x = -1

now solve for 'y':

y = 10(-1) + 2

y = -10 + 2

y = -8