afla termenul necunoscut m-213=289, 578-c=287,n+432=801, 374+a=923​

Răspuns :

Răspuns:

m-213=289

m=213+289

m=502

578-c=287

c=578-287

c=291

n+432=801

n=801-432

n=369

374+a=923

a=923-374

a=549

Răspuns:

a) m-213=289

m=289+213

m=502

b) 578-c=287

c=578-287

c=291

c) n+432=801

n=801-432

n=369

d) 374+a=923

a=923-374

a=549