Question

please+answer+fast...Solve+and+check,+whether+your+answer+is+correct+or+not+(a)3x-9=12(b)8x=18-x(c)5x+-7=2x+8(d)3(x-1)=8​

Answer 1

1. 3x = 12 + 9

3x = 21

x = 21/3

x = 7 ( Ans)

2. 8x+ x=18

9x = 18

x = 18/9

x = 2 (Ans)

3. 5x - 2x = 8 + 7

3x = 15

x = 15/3

x=5 (Ans)

4. 3x - 3 =8

3x = 8+3

3x = 11

x = 11/3

x = 3.66 ( Ans )