Question

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Solve each equation
1.X+9=12
2.s- 1=10
3.3=z-11

Answer 1

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:

Answer 2

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