Question

A)X+3,5=7,3
B)3X+9=--6
C)18-X=3,24
D)0,01X-0,02=2

Answer 1

a) x+3.5=7.3
x=7.3-3.5
x=3.8

b)3x+9=-6
3x=-6-9
3x=-15
x=-15/3
x=-5

c)18-x=3.24
x=18-3.24
x=14.76

d)0.01x-0.02=2
0.01x=2+0.02
0.01x=2.02
x=2.02/0.01
x=202

Sper ca te-am ajutat =)

Answer 2

$\displaystyle a).x+3,5=7,3 \\ x=7,3-3,5 \\ x=3,8 \\ b).3x+9=-6 \\ 3x=-6-9 \\ 3x=-15 \\ x=- \frac{15}{3} \\ x=-5$
$\displaystyle c).18-x=3,24 \\ -x=3,24-18 \\ -x=-14,76 \\ x=14,76 \\ d).0,01x-0,02=2 \\ 0,01x=2+0,02 \\ 0,01x=2,02 \\ x= \frac{2,02}{0,01} \\ x=202$