Question

Can someone help figure out this question? (image provided)

Answer 1

So, we just need to solve for x, representing the miles Yochanan walked. The way we could solve it is by substitution.

x+y=1.5
y=1.5-x

Now we can plug in that new equation for y the top equation, 5x+60y=35

5x+60(1.5-x)=35
5x+90-60x=35
-55x+90=35
-55x=-55
x=1

Yochanan walked for 1 mile.

Hope I didn't mess up for your sake!