Answer:
x = 4
Step-by-step explanation:
Given that
8 x − 7 y = 11
Find x when y = 3
8x - 7(3) = 11
8x - 21 = 11
8x = 32
8x - 7y = 11, y = 3 so replace y in the equation with 3
add 21 to both sides
8x - 21 + 21 = 11 + 21
divide by 8
8x/8 = 32/8
