4x+10(x+4)=6(10-1)+21-2
4x + 10x + 40 = 60 – 6 + 21 – 2
4x + 10x = – 2 + 21 – 6 + 60 – 40
14x = 33
х=33/14
х=2,35714285714
7y+6(2y-1)-2=5(5-3y)+15y-3+10
7y + 12y – 6 – 2 = 25 – 15y + 15y – 3 + 10
7y + 12y + 15y – 15y = 10 – 3 + 25 + 2 + 6
19y = 40
у=40/19
у=2,10526315789
4x+10(x+4)=6(10-1)+21-2
4x + 10x + 40 = 60 – 6 + 21 – 2
4x + 10x = – 2 + 21 – 6 + 60 – 40
14x = 33
х=33/14
х=2,35714285714
7y+6(2y-1)-2=5(5-3y)+15y-3+10
7y + 12y – 6 – 2 = 25 – 15y + 15y – 3 + 10
7y + 12y + 15y – 15y = 10 – 3 + 25 + 2 + 6
19y = 40
у=40/19
у=2,10526315789