Question

afla nr x. 214+x=5003;823-x=597;x-198=5718;x×5=85;x:8=165;90:x=9;12:x=16:8;x×10=80:2;x+x=245+x.

Answer 1

a) 214+x=5003

x=5003-214

x=4789

823-x=597

x=823-597

x=226

x-198=5718

x=5718+198

x=5916

b)x*5=85

x=85:5

x=17

x:8=165

x=165*8

x=1320

90:x=9

x=90:9

x=10

c) 12:x=16:8

12:x=2

x=12:2

x=6

x*10=80:2

x*10=40

x=40:10

x=4

x+x=245+x

2x=245+x

-x+2x=245

x=245