Question

Suzette did twice as many push-ups as Mark did. Bonnie did five less push-ups than Mark did. If they did 71 push-ups together. How many did each do?

Answer 1

so if Suzette = S
Mark = M
and Bonnie = B
then you are given the equations
2*S = M
B - 5 = M
M + B + S = 71

Answer 2

ohh

Answer 3

first let's try solving for M
if 2*S = M then S = M/2 yes? and
B - 5 = M would be B = M +5
then in the equation of M + B + S = 71 you can substitute the values you got
so M + (M+5) + (M/2) = 71
then solve for M

Answer 4

2 x S = m?

Answer 5

... that is one equation yes...
try finding M when M + (M+5) + (M/2) = 71

Answer 6

3m + 5 + 2 = 71?

Answer 7

so it be 3m + 7 = 71?

Answer 8

(M/2) is M over 2
which can not be directly added to the other two M values