3,5×(х+2 1/4) =14, (1 3/4 +х)÷1,9=2,5; (7,1-х)÷3,6=1 1/2

Question

3,5×(х+2 1/4) =14, (1 3/4 +х)÷1,9=2,5; (7,1-х)÷3,6=1 1/2

Answer 1

3,5*(х+2 1/4)=14
х+2 1/4=14/3,5
х+2 1/4=4
х=4-2 1/4
х=3 4/4-2 1/4
х=1 3/4

(1 3/4+х)/1,9=2,5
1 3/4+х=2,5*1,9
1 3/4+х=4,75
х=4,75-1,75
х=3

(7,1-х)/3,6=1 1/2
7,1-х=1,5*3,6
7,1-х=5,4
х=7,1-5,4
х=1,7