3x + 1 = 27
3(7) + 1 = 27
21 + 1 = 27
22 ≠ 27
FALSE
3(x + 1) = 24
3(7 + 1) = 24
3(8) = 24
24 = 24
TRUE
2x + 3(x - 4) = 21
2(7) + 3(7 - 4) = 21
14 + 3(3) = 21
14 + 9 = 21
23 ≠ 21
x^2 - 8 = 42
7^2 - 8 = 42
49 - 8 = 42
41 ≠ 42
Hope This Helped! Good Luck!
