2/5 (3x + 1) = 16

is a fraction its not dividing btw

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11