Empty rooms

In the tourist dormitory, 44 students slept in eight rooms, some of which were four-bed and others six-bed. When two beds were empty, how many four-bed and six-bed rooms were there in the dormitory?

Correct answer:

a =  1
b =  7

Step-by-step explanation:

44+2=4a+6b 8=a+b  44+2=4 a+6 b 8=a+b  4a+6b=46 a+b=8  Row241 Row1Row2 4a+6b=46 0.5b=3.5  b=0.53.5=7 a=4466b=4466 7=1  a=1 b=7



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