Question

X+4=15
4x+12=0
5x-6=2x-3
4x=28
6(x-2)=12
X+3x=-1200

Answer 1

Explicação passo-a-passo:

a) x+4=15

x= 15-4

x= 11

b) 4x+12=0

4x=12

x=3

c) 5x-6=2x-3

5x-2x= -3+6

3x= 3

x=1

d) 4x=28

x=28/4

x= 7

e) 6(x-2)=12

6x-12=12

6x= 12+12

x= 24/6

x= 4

f) x+3x=1200

4x=1200

x= 300