а)9,5х-(3,2х+1,8х)+3,75=6,9
9.5x – 3.2x – 1.8x + 3.75 = 6.9
9,5x – 3,2x – 1,8x = 6,9 – 3,75
4.5x = 3.15
x = 0.7
б)11,3у-(9,7у-0,8у)+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
а)9,5х-(3,2х+1,8х)+3,75=6,9
9.5x – 3.2x – 1.8x + 3.75 = 6.9
9,5x – 3,2x – 1,8x = 6,9 – 3,75
4.5x = 3.15
x = 0.7
б)11,3у-(9,7у-0,8у)+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