Question

2. If 4(t + u) + 3 = 19, then t + u= ?
(A) 3
(B) 4
(C) 5
(D) 6
(E) 7

Answer 1

4

Explanation:

4(t-u)+3=19

4(4)+3=19

16+3=19

19=19

Answer 2

(B) 4

Explanation:

we need to isolate t + u :

Follow the steps :

Subtract 3 from both sides → 4(t + u) + 3 − 3 = 19 −3

→ 4(t + u) = 16

Divide both side so of the equation by 4 → 4(t + u)/4 = 16/4

→ t + u = 4