Respuesta :
1. Subtract 9 from both sides to get X=3
2. Add 1 to both sides to get S =11
3. Add 11 to both sides to get Z=14
2. Add 1 to both sides to get S =11
3. Add 11 to both sides to get Z=14
Answer: 1.) x+9=12
Sol ?
or, x=12-9
or, x=3
2.) s-1=10
Sol ?
or, s = 10+1
or, s=11
3.) 3 = z-11
Sol ?
or, 3+11 = z
or, 14 = z
Step-by-step explanation: