Question

(x+20):12+68=78
(x+282-75):2=104
X x4 :10 +101 =133

Answer 1

Răspuns:

Explicație pas cu pas:

1.(x+20):12+68=78

(x+20):12=78-68

x+20=10*12

x+20=120

x=120-20

x=100

2.(x+282-75):2=104  

x+282-75=104*2

x+207=208

x=208-207

x=1

3.X x4 :10 +101 =133

4x:10=133-101

4x:10=32

4x=32x10

4x=320

x=320:4

x=80

Answer 2

(x+20):12+68=78

(x+20):12= 10

x+20= 120

x= 120-20

x= 100

(x+282-75):2=104

x+282-75= 208

x+282= 283

x= 283-282

x= 1

x×4:10+101=133

x×4:10= 32

x×4= 320

x= 320:4

x= 80