Question

77 x + 43 = 106 pfv me ajudem

8 x + 80 = 112

8 x + 3 = 35

7 x + 54 = 96

Answer 1

Eu creio que esse item a)

não seja 77 e sim 7

7x +43= 106

7x = 106 - 43

7x = 63

x = 63/7

x = 9

8x+80=112

8x=112-80

8x=32

x=32/8

x=4

8x+3=35

8x=35-3

8x=32

x=32/8

x=4

7x+54=96

7x=96-54

7x=42

x = 42/7

x=6

Answer 2

Resposta:

a) x=9/11

b)x=4/1

c)x=4/1

d)x=6/1

Explicação passo-a-passo:

a)77 x + 43 = 106

77x=106-43

77x=63

x=63/77

63 : 7 = 9

77 : 7 = 11

x=9/11

b)8 x + 80 = 112

8x=112-80

8x=32

x=32/8

32 : 8 = 4

8 : 8 = 1

x=4/1

c)8 x + 3 = 35

8x=35-3

8x=32

x=32/8

32 : 8 = 4

8 : 8 = 1

x=4/1

d)7 x + 54 = 96

7x=96-54

7x=42

x=42/7

42 : 7 = 6

7 : 7 = 1

x=6/1