(9x - 7) - (5x + 10 )
2x - 15x
- 13x
Let’s assume that Laura has x$
Jose = 8+ x
Keith= 3x
So the total is equal to
118= x + 8 +x + 3x
118= 5x + 8
Subtract 8 from both sides
110= 5x
Divide 5 by both sides
22$= x which is what Laura has
Jose will have :8+22= 30$
Keith will have :3*22=66$
0 represents ground level...the surface of the ground...and anything below it will be negative, just like everything above it will be positive
