Squaring both sides of the given equation: w^2=7w, or w^2-7w=0.
w^2-7w=0 can be factored: w(w-7)=0. Then, w=7 or w=0. Both 0 and 7 are solutions of this equation.
Answer:
50$
Step-by-step explanation:
$1.25x40= 50 so she would have to pay 50$
3x-2=2x-7
We simplify the equation to the form, which is simple to understand
3x-2=2x-7
We move all terms containing x to the left and all other terms to the right.
+3x-2x=-7+2
We simplify left and right side of the equation.
+1x=-5
We divide both sides of the equation by 1 to get x.
x=-5
