Question

URGENTE !!

calcule as medidas A , B , C e D na medida , sabendo que : A + B = 160 , 3A = 7B e B-C= 22

Answer 1

• {A + B = 160

        {3A = 7B

A=160-B

3(160-B)=7B

480-3B=7B

7B=480-3B

7B+3B=480

10B=480

B=480/10

B=48

SE B=48, ENTÃO

A+48=160

A=160-48

A=112

• B-C= 22

48-C=22

-C=22-48

-C=-26

C=26

A=112, B=48, C=26