Answer:
[tex]9 = x \\ 10 = x[/tex]
Step-by-step explanation:
27 = 7 + 2x
- 7 - 7
________
[tex]\frac{20}{2} = \frac{2x}{2} \\ \\ 10 = x[/tex]
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28 = 1 + 3x
- 1 - 1
________
[tex]\frac{27}{3} = \frac{3x}{3} \\ \\ 9 = x[/tex]
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