Question

Dau coroană repede!!!​

Answer 1

Explicație pas cu pas:

ღSalutare!ღ

(777-a)-258=220

777-a=220+258

777-a=478

a=777-478

a=299

900+2-a×100=302

902-a×100=302

a×100=902-302

a×100=600

a=600:100

a=6

a×(57-13×4)=40

a×(57-52)=40

a×5=40

a=40:5

a=8

(m×2-40):23=12

m×2-40=12×23

m×2-40=276

m×2=276+40

m×2=316

m=316:2

m=158

(m-416:4+2)×5=1980

m-104+2=1980:5

m-104+2=396

m-104=396-2

m-104=394

m=394+104

m=498

(795:5-154)×m=715

(159-154)×m=715

5×m=715

m=715:5

m=143

(808-a)×2=418

808-a=418:2

808-a=209

a=808-209

a=599

Succes!!;)