Question

найти корень уравнения 3-3(х+8)=-6
2а+1=49-6а
-3а-14=-26
3(n-3)+22=26

Answer 1

3-3(x+8)=-6
3-3x+24=-6
-3x=-6+3+24
-3x=21
x=21:(-3)
x=-7

2a+1=49-6a
2a+1-49+6a=0
8a-48=0
8a=48
a=48:8
a=6

-3а-14=-26
-3a=-26+14
-3a=-12
a=(-12):(-3)
a=4

3(n-3)+22=26
3n-9+22=26
3n=26+9-22
3n=13
n=13/3
n=4.3