Question

Determine o valor do x

a) 1x+500=4

b) 3x+500=100+500+x+100

c) x+(x+1)=25

Answer 1

a) 1x+500=4
1x = 4 - 500
1x = -496
x = -496

b) 3x+500=100+500+x+100
3x - x = 100 +500+100 - 500
2x = 700 - 500
2x = 200
x = 200/2
x = 100

c) x+(x+1)=25
2x + 1 = 25
2x = 25 - 1
2x = 24
x = 24/2
x = 12

Um abraço.