Question

4/9 * (2,7y - 2 1/4x) -4,2 * (5/7y - 0,5x)

Answer 1

$\frac{4}{9}(2,7y-2\frac{1}{4}x)-4,2(\frac{5}{7}y-0,5x)=\\\frac{4}{9}*2,7y-\frac{9}{4}x*\frac{4}{9}-4,2*\frac{5}{7}y-0,5x*(-4,2)=\\4*0,3y-x-0,6*5y+2,1x=\\1,2y-x-3y+2,1x=\\-1,8y+1,1x$

Answer 2

=1,2y-x-3y+2,1x=1,1x-1,8y
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