Question

a)3×-36=-2
b)×+×+150+×+250=100
c)×+×+20+2×+40+3×=725
d)2×-10+×=11
e)5×-65=3×+81
f)×+×-2=74
g)×+×+×+4=52
h)8×-50=7×+20​

Answer 1

Resposta:

a)3x= 36-2

3x=34

x= 34/3 → x é aproximadamente 11,3

b)3x= 100-400

3x= -300

x= -300/3 → x= -100

c)7x= 725-60

7x= 665

x= 665/7 → x= 95

d)3x= 11+10

x= 21/3 → x= 7

e)5x-3x= 81+65

2x= 146

x= 146/2 → x= 73

f)2x= 74+2

x= 76/2 → x= 38

g)3x= 52-4

x= 48/3 → x= 16

h)8x-7x= 20+50

x= 70

Explicação:

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