400g=.4kg
.4kg×25p/1kg=10p
Answer:
x = 6
Step-by-step explanation:
Step 1: Write equation
150 - x - 2x = 120 + 2x
Step 2: Solve for <em>x</em>
- Combine like terms: 150 - 3x = 120 + 2x
- Add 3x to both sides: 150 = 120 + 5x
- Subtract 120 on both sides: 30 = 5x
- Divide both sides by 5: 6 = x
- Rewrite: x = 6
Step 3: Check
<em>Plug in x to verify it's a solution.</em>
150 - 6 - 2(6) = 120 + 2(6)
144 - 12 = 120 + 12
132 = 132
45 + 35x = 40x
45 = 40x - 35x
45 = 5x
45/5 = x
9 = x <=== they are the same cost at 9 nights
