Answer :

Let's find the value of [tex]\( x \)[/tex] in the equation [tex]\(\frac{1}{5} x - \frac{2}{3} y = 30\)[/tex], given that [tex]\( y = 15 \)[/tex].

1. Start by substituting [tex]\( y = 15 \)[/tex] into the equation:
[tex]\[ \frac{1}{5} x - \frac{2}{3} \times 15 = 30 \][/tex]

2. Next, calculate [tex]\(\frac{2}{3} \times 15 \)[/tex]:
[tex]\[ \frac{2}{3} \times 15 = 10 \][/tex]

3. Substitute this value into the equation:
[tex]\[ \frac{1}{5} x - 10 = 30 \][/tex]

4. Add 10 to both sides of the equation to isolate the term with [tex]\( x \)[/tex]:
[tex]\[ \frac{1}{5} x = 30 + 10 \][/tex]

5. Simplify the right side:
[tex]\[ \frac{1}{5} x = 40 \][/tex]

6. Finally, solve for [tex]\( x \)[/tex] by multiplying both sides by 5:
[tex]\[ x = 40 \times 5 \][/tex]
[tex]\[ x = 200 \][/tex]

Thus, the value of [tex]\( x \)[/tex] is 200.