Question

2xby4 + 5by7 = 5by7 ​

Answer 1

Answer:

x = 0

Step-by-step explanation:

$\frac{2x}{4} + \frac{5}{7} = \frac{5}{7}$

LCM of 4,7 and 7 is 28. So,

Multiply both sides of the equation by 28,

$28(\frac{2x}{4}) + 28 (\frac{5}{7} ) = 28 (\frac{5}{7})$

If we simplify, we get

$7(2x) + 4 (5) = 4 (5)$

Now we calculate the final product.

$\\\\7(2x) + 4 (5) = 4 (5)\\\\ 14x + 20 = 20\\\\ 14x = 20-20\\\\ 14x = 0\\\\ x=\frac{0}{14}$

Since, 0/14 is not defined

x = 0