(10у+2*(7у-2)):5=(5*(4у+3)+3у):5

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Let's simplify each side of the equation:

Left side:
(10у + 2*(7у - 2)) / 5
= (10у + 14у - 4) / 5
= (24у - 4) / 5
= 24у / 5 - 4 / 5
= 4.8у - 0.8у
= 4у

Right side:
(5*(4у + 3) + 3у) / 5
= (20у + 15 + 3у) / 5
= (23у + 15) / 5
= 23у / 5 + 15 / 5
= 4.6у + 3

Now, we have:
4у = 4.6у + 3

Subtracting 4.6у from both sides:
4у - 4.6у = 3
-0.6у = 3

Dividing by -0.6:
у = -5

So, the solution to the equation is у = -5.