Answer:
1st solution is -2x+12
2nd solution is 5x+31
3rd one doesnt have a solution
Step-by-step explanation:
c
im not completely sure
192.
2(8+4)÷2(8+8) = 1(4+8)×(8+8)
1×12×16=192.
5
20/5 = 5/1
so the answer is c
4
87.5
