Answer:
x+ 1,-6
Step-by-step explanation:
Seperate into possible cases
6x+15= 21
6x+15=-21
Solve the equation for x.
6x+15=21
-15 -15
__________
6x=6
Divide both sides by 6
x= 1
6x+15= -21
-15 -15
_________
6x= 36
Divide both side by 6
x= -6
Hope this helpsʕ•ᴥ•ʔ
