Question

me ajudem:


k) 50 + 38 + p = -4p + 85

l) 7y + 8y =1500

m) 1800x = 7200

n) 1000 + 3500 + x = -2x + 150

o) i

_ x = 50

x

Answer 1

Explicação passo-a-passo:

k) 50 + 38 + p = -4p + 85

88+p=-4p+85

p+4p=85-88

5p=-3

p=-3/5

l) 7y + 8y =1500

15y=1500

y=1500/15

y=100

m) 1800x = 7200

x=7200/1800

x=4

n) 1000 + 3500 + x = -2x + 150

4500+x=-2x+150

x+2x=150-4500

3x=-4350

x=-4350/3

x=-1450

obs: nao entendi a "O"