Question

jente nao aprendi isso direito me ajudem por favor isso vale 10 ptos pfv .a)2×+3=19 b)3×-6=12 c)5×+7=72 d)4×+15=95 e)7×-14=70 f)10×-6=144 g)6×+1=97 h)4×-5=135 i)5×+18=88

Answer 1

a)
2×+3=19
2x = 19 - 3
2x = 16
x = 16/2
x = 8

b)
3×-6=12 
3x = 12 + 6
3x = 18
x = 18/3
x = 6

c)
5×+7=72 
5x = 72 - 7
5x = 65
x = 65/5
x = 13

d)
4×+15=95 
4x = 95 - 15
4x = 80
x = 80/4
x = 20

e)
7×-14=70 
7x = 70 + 14
7x = 84
x = 84/7
x = 12

f)
10×-6=144 
10x = 144 + 6
10x = 150
x = 150/10
x = 15

g)
6×+1=97
6x = 97 - 1
6x = 96
x = 96/6
x = 16