Mathematics
Mathematics, 19.02.2021 18:50, lucialovell6804

Use your knowledge about parentheses and substitution to solve the following: 7. 2(x + 4) + 10 =

8. 3(6x) + 4 =

9. 10(xy) =

10. 5(x + y) =

11. 2(rs) + 4(x)

12. 2(q) + 2(x + t) =

13. 6(7t + 4s) =

14. 9(10x) + 10y =

15. 2x(xy) =

16. r(s)(t) =

17. (r)(s)(t)(x)(y) =

18. (7x + 2Y) =

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Use your knowledge about parentheses and substitution to solve the following: 7. 2(x + 4) + 10 =

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