Question

alguém me ajude com a 14

Answer 1

14) 
a) x-48+120
x=120+48
x=168

b) 4x+2x=36
6x= 36
x=36/6
x=6

c) 15x-7=10x+33
15x-10x=7+33
5x=40
x=40/5
x=8

d) 9x=99
x=99/9
x=11
 
e) 9x+34=10x-18
9x-10x=-34-18 
-x= -34-18 . (-1)
x= 34+18
x=52

f) 3x-22=14+9x 
3x-9x=22+14
-3x= 36 . (-1)
x=-36/3
x= -12