Answer:
x: Colleen
Luis: x+4
x+x+4=52
2x+4=52
2x=48
x=24: Colleen
x+4=28 Luis
x=11.5
Step-by-step explanation:
2x+8=-15
x=-23/2
x=-11.5
the answer is 17x+20
7x+10x+20
17x+20
hope it helps
mark me brainliest pls