Question

Resolva as seguintes equações:

a) X÷5=8

b)X+9=-1

c) 9X-2=4X+18

d) 7y-10=y+50​

Answer 1

Olá, boa noite ☺

Resoluções:

a)

x/5=8

x=5 × 8

x=40

b)

x+9=-1

x=-1-9

x=-10

c)

9x-2=4x+18

9x-4x=18+2

5x=20

x=20/5

x=4

d)

7y-10=y+50​

7y-y=50+10

6y=60

y=60/6

y=10

Bons estudos !

Answer 2

a) X ÷ 5 = 8

X = 8 . 5

X = 40

b) X + 9 = -1

X = -1 - 9

X = -10

c) 9X - 2 = 4X + 18

9X - 4X = 18 + 2

5X = 20

X = 20 / 5

X = 4

d) 7y - 10 = y + 50​

7y - y = 50 + 10

6y = 60

y = 60 / 6

y = 10