Question

afla valorile lui x din fiecare relatie data (x-1)/10+90=134x5
40/2+800/5=x/3-40x2
642-32xx=30x30-118x3

Answer 1

(x-1)/10+90=134x5
(x-1)/10+90=670
(x-1)/10=670-90
(x-1)/10=580
x-1=580x10
x-1=5800
x=5800+1
x=5801

40/2+800/5=x/3-40x2
20+160=x/3-80
180=x/3-80
x/3-80=180
x/3=180+80
x/3=260
x=260x3
x=780

642-32xX=30x30-118x3
642-32xX=900-354
642-32xX=546
32xX=642-546
32xX=96
x=96:32
x=3