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In the equation 3x + 4y = 12, what is the value of y when x = 0?

Practice Questions

Q1
In the equation 3x + 4y = 12, what is the value of y when x = 0?
  1. 0
  2. 3
  3. 4
  4. 12

Questions & Step-by-Step Solutions

In the equation 3x + 4y = 12, what is the value of y when x = 0?
  • Step 1: Start with the equation 3x + 4y = 12.
  • Step 2: Substitute x = 0 into the equation. This means wherever you see x, you replace it with 0.
  • Step 3: The equation now looks like this: 3(0) + 4y = 12.
  • Step 4: Simplify the equation. 3(0) is 0, so it becomes 0 + 4y = 12.
  • Step 5: Now, the equation is 4y = 12.
  • Step 6: To find y, divide both sides of the equation by 4. This means you do 12 ÷ 4.
  • Step 7: Calculate 12 ÷ 4, which equals 3.
  • Step 8: Therefore, y = 3.
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