4x+5y=52
x=y+4
Josh drives a lorry.
He is planning his route.
On the planned route there is a low bridge.
The maximum height of a lorry allo...
4x+y=7
y=3x
3(7s+4)-15s=3(2s+2)-7
3(7s+4)-15=3(2s+2)-7
50=? time ? time ? time ?
8(x+3)=2(4x+5)+14
4X+1/3=12X-3/7
8(x+3)=4(2x+3)+12
