Question

0,2(2,1x-2,3y)-0,4(3,1y+1,9x)

Answer 1

0,2(2,1х-2,3у)-0,4(3,1у+1,9х)=0,42х-0,46у-1,24у-0,76х=-0,34х-1,7у

Answer 2

To simplify the expression, let's perform the multiplication and addition step by step:

1. Distribute the coefficients to each term inside the parentheses:

0.2 * (2.1x - 2.3y) = 0.42x - 0.46y 0.4 * (3.1y + 1.9x) = 1.24y + 0.76x

2. Now, we can combine like terms (terms with the same variables):

0.42x - 0.46y - 1.24y - 0.76x

3. Combine the x-terms and the y-terms separately:

(0.42x - 0.76x) + (-0.46y - 1.24y)

0.42x - 0.76x = -0.34x -0.46y - 1.24y = -1.7y

So, the simplified expression is:

-0.34x - 1.7y