Question

simplyfy(4/3x-2y/5)^2-(4/3x+2/5y)​

Answer 1

Answer:

35y−2x Explanation: Begin by distributing the brackets. ⇒5(2x+3y)−4(3x−5y) =10x+15y−12x+20y collect like terms and simplify. 10x−12x+15y+20y

Step-by-step explanation:

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Answer 2

Answer:

$\huge\mathtt\blue{BY YOUR DIDI }$

Step-by-step explanation:

Given equations are, 

5y+7=42y−x+3x−5

⇒4(y+7)=5(2y−x+12x−20)

⇒4y+28=10y+55x−100

⇒55x+6y=128 ....(1)

and 27−5x+63−4y=5y−18

⇒3(7−5x)+(3−4y)=6(5y−18)

⇒21−15x+3−4y=30y−108

⇒15x+34y=132 ....(2)

Multiply (1) by 3 and (2) by 11, we get

165x+18y=384

165x+374y=1452

Subtracting above equations we get

356y=1068⟹y=3

Put value of y in (1)

we get x=2

∴x=2,y=3