1. 3(x+15)=57 2. 2(x-9)=26 3. 4(x-12)=-32 solve \: for \: x ​

Question

1. 3(x+15)=57
2. 2(x-9)=26
3. 4(x-12)=-32

`solve \: for \: x`
​

Answer 1

Explanation:

1)3(x+15)=57

3x+45=57

3x=57-45

3x=12

x=12/3.

x=4

2)2(x-9)=26

2x-18=26

2x=26+18

2x=44

x=44/2

x=22

3)4(x-12)=-32

4x-48=-32

4x=-32+48

4x=+16(greater number sign)

x=16/4

x=4