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In the equation 4x + 5y = 20, what is the value of y when x = 0?

Practice Questions

Q1
In the equation 4x + 5y = 20, what is the value of y when x = 0?
  1. 0
  2. 4
  3. 5
  4. 20

Questions & Step-by-Step Solutions

In the equation 4x + 5y = 20, what is the value of y when x = 0?
  • Step 1: Start with the equation 4x + 5y = 20.
  • Step 2: Substitute x = 0 into the equation. This means you replace x with 0.
  • Step 3: The equation now looks like this: 4(0) + 5y = 20.
  • Step 4: Calculate 4(0), which is 0. So the equation simplifies to 0 + 5y = 20.
  • Step 5: Now, the equation is 5y = 20.
  • Step 6: To find y, divide both sides of the equation by 5. This means you do 20 ÷ 5.
  • Step 7: Calculate 20 ÷ 5, which equals 4.
  • Step 8: Therefore, the value of y when x = 0 is 4.
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