variables
Fractions
100

4 x y =20

y=5
100

1/2+1/2=?

1

200

5(x) = ?

x=2.7

13.5

300

3(x)2 + 6(y)

x=3

y=2

39

400

6(x)2-3(y)

x=3

y=2

48

500
5(x)3+4(y)2-2(t)

x=4.5

y=2.7

t=5.1

474.585

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