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If 5x - 7 = 3x + 9, what is the value of x?
If 5x - 7 = 3x + 9, what is the value of x?
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Q1
If 5x - 7 = 3x + 9, what is the value of x?
8
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5
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Subtract 3x from both sides: 2x - 7 = 9. Add 7: 2x = 16. Divide by 2: x = 8.
Questions & Step-by-step Solutions
1 item
Q
Q: If 5x - 7 = 3x + 9, what is the value of x?
Solution:
Subtract 3x from both sides: 2x - 7 = 9. Add 7: 2x = 16. Divide by 2: x = 8.
Steps: 7
Show Steps
Step 1: Start with the equation 5x - 7 = 3x + 9.
Step 2: Subtract 3x from both sides to get 5x - 3x - 7 = 9.
Step 3: This simplifies to 2x - 7 = 9.
Step 4: Now, add 7 to both sides to eliminate -7. This gives you 2x = 9 + 7.
Step 5: Simplifying the right side, you get 2x = 16.
Step 6: Finally, divide both sides by 2 to solve for x. This gives you x = 16 / 2.
Step 7: Therefore, x = 8.
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