Question

Anybody know how to do 2 step equations? I need help on these problems.

1. 23 = 6x + 1
2. 5.7 + 0.3y = 6.9
3. -3a + 7 = 9a - 5

It's ok if you dont know all of them. please tell me what you did to solve the problems if you can.

Answer 1

Answer:1.x= 3.66666 or 11/3

2.y=4

3.a=1

Explanation:

1. 23 = 6x + 1

-1. -1

22=6x

÷6 ÷6

x=3.66666 or 11/3

2. 5.7 + 0.3y = 6.9

-5.7. -5.7

0.3y=1.2

÷0.3. ÷0.3

y=4

2. -3a + 7 = 9a - 5

+3a. +3a

7=12a-5

+5. +5

12=12a

÷12 ÷12

a=1