x = -23
y = -7
Explanation:x = 4y + 5 ...equation 1
x = 3y - 2 ...equation 2:
Using substitution method:
Since both equation have x as the subject of formula, we would equate both together
x = x
Substitute equation 2 in 1:
3y - 2 = 4y + 5
3y - 4y = 5 + 2
-y = 7
y = -7
Substitute for y in equation 1:
x = 4(-7) + 5
x = -28 + 5
x = -23
