Question

if 5 X upon 3 minus 4 equals to 2 X upon 5 then find the commercial value of 2 x minus 7 is​

Answer 1

Answer:

Step-by-step explanation:

It is given that,

5X/3-4 = 2X/5

25X = -2X

25X+2X = 0

27X = 0

X = 0

Therefore,

2X-7 = 2(0)-7

=>0-7

=>-7.

Answer 2

The value of 2x-7 is $-\dfrac{13}{19}$.

Step-by-step explanation:

Consider the given equation is

$\dfrac{5x}{3}-4=\dfrac{2x}{5}$

LCM of 3 and 5 is 15.

Multiply both sides by 15.

$15(\dfrac{5x}{3}-4)=15(\dfrac{2x}{5})$

$25x-60=6x$

$25x-6x=60$

$19x=60$

Divide both sides by 19.

$x=\dfrac{60}{19}$

We need to find the value of 2x-7.

$2(\dfrac{60}{19})-7=\dfrac{120}{19}-7$

$2(\dfrac{60}{19})-7=\dfrac{120-133}{19}$

$2(\dfrac{60}{19})-7=-\dfrac{13}{19}$

Therefore, the value of 2x-7 is $-\dfrac{13}{19}$.

#Learn more

2x + 5 = 5x - 6 .......................

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