Question

5\6(4.2x-1целая 1\5у)-5.4(2\3х-1.5у) решите

Answer 1

5/6*(4,2х-1 1/5y)-5,4(2/9х-1,5y)=5/6*42х/10-5/6*6y/5-54/10*2х/9+5,4*1,5y =7y/2-y-6х/5+8,1y=7,1y-2,3х

Answer 2

To solve this expression, we'll first simplify the terms inside the parentheses and then distribute the coefficients outside the parentheses:

5/6(4.2x - 1 1/5y) - 5.4(2/3x - 1.5y)

We can simplify the fraction 1 1/5 by first multiplying the whole number 1 by the denominator 5, which gives 5, and then adding the numerator 1 to get 6. So 1 1/5 is the same as 6/5.

5/6(4.2x - 6/5y) - 5.4(2/3x - 1.5y)

Now we'll distribute the coefficients:

(5/6)(4.2x) - (5/6)(6/5y) - (5.4)(2/3x) + (5.4)(1.5y)

3.5x - 1y - 3.6x + 8.1y

Now we'll combine like terms:

(-3.5x) + 7.1y

So the solution is -3.5x + 7.1y.