Question

In the problem below, which line contains an

error?
Line 1: 6x - 2(x + 5) = 22
Line 2: 6x - 2x - 10 = 22
Line 3: 8x - 10 = 22
Line 4: 8x = 32
Line 5: x=4
a) Line 2
b) Line 3
c) Line 4
d) Line 5

Answer 1

b) line 3 because when they combined like terms, 6x and -2x they added 6 and 2 but should’ve done 6 plus -2