Tìm x:

a) x/6 = 7/4

b) 3/x = 21/17

c) 125x = 25/3

d) -3/x = 15/7

e) 0,1/5 = x//15

f) -4/1,2 = x/-3,6

g) -2,6/12 = x/-42

h) 21/14 = 33/x

i) 1,4/-5 = 2,1/x

k) 0,12/3 = 0,21/x

l) x-2/3 = 4/5

n) x+3/-4 = 5/12

m) 3/ x-1 = 21/16

Find 3 health fact and 3 health myth

Tìm x:

1) -3.(1-2x) - 4.(1+3x) = -5x + 5

2) 3.(2x - 5) - 6.(1 - 4x) = -3x + 7

3) (1 - 3x) - 2.(3x - 6) = -4x - 5

4) x.(4x - 3) - 2x.(2x - 1) = 5x - 7

5) 3x.(2x - 1) - 6x.(x + 2) = -3x + 4

6) (1 - 2x).3 - 4.(6x - 1) = 7x - 5

7) 6x - 3.(1 - 4x) - 5.(x + 1) = 2x + 7

8) 6.(1 - 3x) - 3.(2x + 5) = -10x + 7

9) 3x.(1 - 2x) + 6x^2 - 7x = 8.(1 - 2x) - 9

10) 2x.(1 + 3x) - 3x.(4 + 2x) = 3x - 4

He suggests (take) the bus to

She gets fat bacause she is always tasting things while she (cook)

She never (eat) this kind of this food before

Bill decided (buy) a new car rather than a used one

Long (fall) down the stairs this morning and (break) his leg

George is interested in (take) an art class

The package has (be) there tomorrow. It (be) there in time?

We are looking forward to (hear) from you ...............

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