Answer:
x = 4
Step-by-step explanation:
Substitute 3 in for y.
8x - 7(3) = 11 (Given)
8x - 21 = 11 (Simplified)
8x = 32 (Added 21 on both sides)
x = 4 (Divided 8 on both sides)
8x-7y=11
8x-7×3=11
8x-21=11
8x=11+21
8x=32
x=32/8
x=4
