1.3 of 1 (6 + x) = 2.82.9 * 3-1.7x = 13.4

1.3 of 1 (6 + x) = 2.82.9 * 3-1.7x = 13.4

1 / 3 (6 + x) = 2.8
6+x=2.8÷1/3
6+x=8.4
x=8.4-6
x=2.4
9*3-1.7x=13.4
1.7x=9*3-13.4
1.7x=13.6
x=13.6÷1.7
x=8