Question

ALGUÉM ME AJUDA PFV??? (EQUAÇÃO 1 GRAU)​

Answer 1

Explicação passo-a-passo:

a) 3+×=0

×= -3

b) 23×+2=2

23×= 2-2

23×= 0

×= 0/23

×= 0

c) 12-7+4×=25

4×= 25 +7 - 12

4×= 20

×= 20/4

×= 5

d) 5×-3×=30

2×=30

×= 30/2

×= 15

e ) 4×+10=45-3×

4×+3×= 45 -10

7×= 35

×= 35/7

×= 5

2)

a) ×-3= 9

×= 9/3

×= 3

b) 4×-9= 1-2×

4×+2×= 1+9

6×= 10

×= 10/6 reduz por 2

×= 5/3

c) ×+5=20-4×

×+4×=20-5

5×=15

×=15/5

×= 3

d) 9×-4×+10=7×-30

5×-7×=10-30

-2×=-20 (-1)

×= 20/2

×= 10