Question

d) 2x - 3=7 a) x + 15 = 7 b) y - 8 = 10 c) 6 + a = 12 e) 10 - x = 4 1) 3 - x = 0 g) 20 = y - 8 h) 4a = - 16 i) 2y - 1 = 8 + 1 1) 10x - 9 = 91 de calcule sua raiz​

Answer 1

Resposta:

d) 2x - 3=7

2x=7+3

2x=10

x=10/2

x=5

a) x + 15 = 7

x=7-15

x=-8

b) y - 8 = 10

y=10+8

y=18

c) 6 + a = 12

a=12-6

a=6

e) 10 - x = 4

x=10-4

x=6

1) 3 - x = 0

x=3-0

x=3

g) 20 = y - 8

y=20+8

y=28

h) 4a = - 16

a=16/4

a=4

i) 2y - 1 = 8 + 1

2y=8+1+1

2y=10

y=10/2

y=5

1) 10x - 9 = 91

10x=91+9

10x=100

x=100/10

x=10

Espero ter ajudado!!