Question

How many solutions does this equation have?

20 − 15n + 11 = –20 − 18n

Answer 1

n=17

step by step

simplify both sides

than add 18n to both sides

than subtract 31 from both sides

than divide 3 by both sodes

Answer 2

one solution

Explanation:

20 - 15n + 11 = -20 - 18n

31 - 15n = -20 - 18n

Subtract 31 from both sides

- 15n = -20 - 31 - 18n

-15n = -51 - 18n

Add 18n to both sides

18n - 15n = -51

3n = -51

Divide both sides by 3

n = -51/3

n = -17