1/3 х +х = 1_1/3 х = 4/3 х
х= 3
4/3 * 3 = 4/3 * 3/1 = (4*3) / (3*1) = 4/1 = 4
2(y+5)-14=26
2(y+5)=26+14
2(y+5)=40
y+5=40:2
y+5=20
y=20-5
y=15