Answer:
8 capsules
Step-by-step explanation:
The 100 mL of solution requires 4 capsules for its preparation. (4 × 150 mg = 600 mg). So, twice as much solution (200 mL) will require twice as many capsules. It will take 8 capsules to make 200 mL of solution.
You solve for one variable like
y-5x=2
"y=5x+2"
9x+3y=58
and you plug it in into the other equation
9x+3(5x+2)=58
You solve for x and then plug in your answer for x into the other equation
*let's imagine x=8*
then:
y-5(8)=2
and solve for y
:D