11.3y-(9.7y-0.8y)+7.4=17
11.3y – 9.7y + 0.8y + 7.4 = 17
11,3y – 9,7y + 0,8y = 17 – 7,4
2.4y = 9.6
y = 4
11.3y-(9.7y-0.8y)+7.4=17
11.3y – 9.7y + 0.8y + 7.4 = 17
11,3y – 9,7y + 0,8y = 17 – 7,4
2.4y = 9.6
y = 4