Question

afla nr.nec,din expresiile:
a)(a+27:3)x5=95
b)2+bx9-25=10
c)(c-104+2)x5+3=98
d)(dx4+20):4=12
e)(36-42:e:(15:3-4:1)-20=10
f)11-(7x5-9x9:f:3):8=7

Answer 1

a) a+9=19
a=10
b. 9b= 33
b=11/3
c. c-102=19
c=121
d.4d=28
d=7