4X + 5Y = 20. X= 2. what is Y?
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Step-by-Step Solution
Step 1: Substitute the value of X
We are given the equation $4X + 5Y = 20$ and the value of $X = 2$. To find $Y$, we substitute the value of $X$ into the equation.
Step 2: Simplify the equation
Next, we multiply $4$ by $2$ to simplify the equation. This gives us $8 + 5Y = 20.
Step 3: Isolate the term with Y
To isolate the term with $Y$, we subtract $8$ from both sides of the equation. This simplifies to $5Y = 12.
Step 4: Solve for Y
Finally, to solve for $Y$, we divide both sides of the equation by $5$. This gives us $Y = \frac{12}{5}.