Answer:

Step-by-step explanation:

Add
and
on both sides.

Add or subtract like terms.

Divide
on both sides.


is the independent variable now.
Factoring the equation:
3x^2 + 1/2 x 7(3)
3x^2 + 1/2 x 21
3 (x^2 + 1/2 x 21)
3 (x^2 + 7/2)
3 x 1/2 (2x^2 +7)
3/2 (2x^2 + 7)
Answer:
It’s 5 mph I would be tired if I had to walk 4 miles
5
Step-by-step explanation: