Problem 10 of 7
Solve the linear equation 7x - 3 = 18.
Hints
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Hidden until you reveal it.
inverse operations.
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Equation must require one or two inverse-operation steps.
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Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
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Full solution stays hidden until you ask for it.
1. Undo addition or subtraction first if present.
2. Undo multiplication or division to isolate x.
3. Check by substitution.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Arithmetic that fails substitution.