Question

8. Consider the following attempt to solve the equation x + x + 4 = 2: "From
the given equation, it follows that x + 4 = 2-X. Squaring both sides gives
x+4 = 4-4x+x?. After rearranging the terms, it is seen that this equation
implies x? - 5x = 0. Canceling x, we obtain - 5 = 0 and this equation is
satisfied when x = 5."
a. Mark with arrows the implications or equivalences expressed in the text.
Which ones are correct?
b. Give a correct solution to the equation.

Answer 1

Step-by-step explanation:

A mother said to her son, "The sum of our present ages is twice my age 12 years ago an

nine years hence, the sum of our ages will be thrice my age 14 years ago". What is het ons

present a