At practice john does three times as many sit ups as ned and also 25 jumping jacks . He does 80 exercises in total . The equation 3x+25=80 describes the situation .What does the variable x represent

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How many sit ups Ned does

Step-by-step explanation:

It would be 3 times however many Ned does

answer

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step-by-step explanation:

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right