5 x 6 - 8 = 22 but 5 x (6 - 8) = -10 Remember order of operations.
5 x 6 x 10
x/10 = 3/5 multiply both sides by 10 x = 30/5 = 6
x=6=x=5+x=13+x=20 x cannot = x+5. This question has no answer.
10
2x - 6 = 4 2x = 4 + 6 = 10 x = 10/2 = 5 ∴ x = 5
5 x 6 - 8 = 22 but 5 x (6 - 8) = -10 Remember order of operations.
5 x 6 x 10
x/10 = 3/5 multiply both sides by 10 x = 30/5 = 6
x=5. 10x-4x (6x) +10-6x (=10) If 10 is 2x, x=5.
x=6=x=5+x=13+x=20 x cannot = x+5. This question has no answer.
10
15
6 - x + 7 - 3x - 5 = -2x - 10 ∴ x + 3x - 2x = 6 + 7 - 5 + 10 ∴ 2x = 18 ∴ x = 9
10
x+5=10 x+5-5=10-5 x=5
5