Question

h) x - 4 = 9
i) x - 3 = 15
j) x - 19 = 12
l) x - 18 = 54
m) x - 37 = 13
n) 2 . x = 14
o) 8 . x = 40
p) 6 . x = 18
k) 4 . x = 28
r) 2x + 1 = 7
s) 5x -2 = 8
z) 2x + 1 = 15
y) 6x - 3 =

Answer 1

Resposta:

X - 4 = 9

X = 9 + 4

X = 13

X - 3 = 15

X = 15 + 3

X = 18

X - 19 = 12

X = 12 + 19

X = 31

X - 18 = 54

X = 54 + 18

X = 72

X - 37 = 13

X = 13 + 37

X = 50

2.x = 14

2x = 14

X = 14 : 2

X = 7

8.x = 40

8x = 40

X = 40 : 8

X = 5

6.x = 18

6x = 18

X = 18 : 6

X = 3

4.x = 28

4x = 28

X = 28 : 4

X = 7

2x + 1 = 7

2x = 7 - 1

2x = 6

X = 6 : 2

X = 3

5x - 2 = 8

5x = 8 - 2

5x = 6

X = 6/5

2x + 1 = 15

2x = 15 - 1

2x = 14

X = 14 : 2

X = 7

6x - 3 =????