Question

ajutooor dau coroana repede

Answer 1

x+2x/3=75 (*3)

5x=225

x=45

y=75-45=30(sau 2x/3)

2.x=3y+7

4y+7=127

y=120/4

y=30

x=97

3.Faci sistem si amplifici pe prima cu -2 si a doua cu 3

4. (((x+8)*7)-5)/11=11 ->((x+8)*7)-5)=121

7x+56-5=121

7x=70

x=10