Question

tinand cont ca x=3 afla 1+3b stiind ca
a) xa+3xb=51
b) 2a+6b-x=21
c) 8x-a-3b=7
d) 4a+12b=27-x
am nevoie de rezolvare repede

Answer 1

Explicație pas cu pas:

a) x(a+3b)=51

a+3b=51/3=17

b)

2(a+3b)-x=21

a+3b=21+3/2=24/2=12

c)8x-(a+3b)=27

a+3b=24-27=-3

d)3(a+3b)=27-3

a+3b=24/3

a+3b=8

Cred ca ai vrut sa spui a+3b, nu 1+3b