Which equation has the solution x, equals, 7*x*=7?

Answer

Multiple Choice Answers

9, x, minus, 3, equals, 609*x*−3=60

4, x, plus, 6, equals, 324*x*+6=32

7, x, minus, 8, equals, 767*x*−8=76

3, x, minus, 1, equals, minus, 203*x*−1=−20

We need to find which of the given equations has \( x = 7 \) as the solution. Let's check each one by substituting \( x = 7 \) into the equations.

1. **Equation**: \( 9x - 3 = 60 \)  
   Substitute \( x = 7 \):
   \[
   9(7) - 3 = 63 - 3 = 60
   \]
   This equation is **true** when \( x = 7 \).

2. **Equation**: \( 4x + 6 = 32 \)  
   Substitute \( x = 7 \):
   \[
   4(7) + 6 = 28 + 6 = 34
   \]
   This equation is **not true** when \( x = 7 \).

3. **Equation**: \( 7x - 8 = 76 \)  
   Substitute \( x = 7 \):
   \[
   7(7) - 8 = 49 - 8 = 41
   \]
   This equation is **not true** when \( x = 7 \).

4. **Equation**: \( 3x - 1 = -20 \)  
   Substitute \( x = 7 \):
   \[
   3(7) - 1 = 21 - 1 = 20
   \]
   This equation is **not true** when \( x = 7 \).

The correct equation that has \( x = 7 \) as the solution is the first one:
\[
9x - 3 = 60
\]

Would you like more details or have any questions?

Here are some related problems:
1. Which equation has the solution \( x = 5 \)?
2. Solve \( 5x + 2 = 27 \) and check the solution.
3. Which equation has the solution \( x = 10 \)?
4. Solve \( 2x - 7 = 13 \).
5. Which equation has the solution \( x = -4 \)?
6. Solve \( 8x + 3 = 67 \).
7. Which equation has the solution \( x = 3 \)?
8. Solve \( 6x - 4 = 32 \).

**Tip:** When solving equations, always substitute the solution back into the original equation to verify that it satisfies the equation.

Explore which equation has x = 7 as a solution with step-by-step verification. Solve equations involving variables and constants to identify correct solutions. Ideal for high school students studying algebraic equations.

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