Question

What is the value of x in the equation x - y = 30, when y = 15? O4 O 8 O 80 O 200

Answer 1

$\frac{1}{5}x - \frac{2}{3} y = 30$

Putting the value of Y = 15

$\frac{1}{5} x - \frac{2}{3} \times 15 = 30 \\ \frac{1}{5} x = 30 + 10 \\ \frac{1}{5} x = 40 \\ x = 5 \times 40 \\ x = 200$

So, X = 200