Question

afla numarul necunoscut din expresiile: f) 11-(7*5-9*9:f:3):8egal7. g) 22-5*(38:4*g)egal 12

Answer 1

f )11-(7*5-9*9:f:3):8=7
11-(35-81:f:3):8=7
11-(35-27:f):8=7
(35-27:f):8=11+7
(35-27:f):8=18
35-27:f=8×18
35-27:f=144
27:f=144+35
27:f=179
27=179*f
179f=27
f=27:179
f=0.1509379(8)