Which of the following best describes the solution to the equation below? 3(x+ 7) = 3x + 21

Question

asked Feb 5, 2021 94.9k views

1 Answer

Timdeschryver · Answer 1 · 2021-02-12T07:53:17+0000

Answer:

x = x; the solution has infinite solutions

Explanation:

3(x+ 7) = 3x + 21; distribute the 3 on the left side

3x + 21 = 3x + 21; now subtract 21 from both sides

3x = 3x; divide by 3

x = x; the solution has infinite solutions. Since both terms are equal any value for x will be true on this equation.