Answer:
4.5
Step-by-step explanation:
multiply inside the brackets
5 × 2x = 10x, 5 × 1 = 5
10x + 5 = 50
subtract 5 on both sides (50 - 5 = 45) to give
10x = 45
divide 10 on both sides
45 ÷ 10 = 4.5, so x = 4.5
Angle of depression
total weight = 50
3x + 10y = 50
