Question

Resolva as equações :
a) 500+200+X=3X+100

b) X+300+X=5X

c) 2X+500+100=X+1000

d) 5X=2X+250+10

Answer 1

500+200+x=3x+100
500+200-100=3x-x
600=2x. x= 600/2. x= 300

x+300+x=5x
300=5x-x-x
300=3x. x= 300/3. x= 100