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I believe unless there is a typo in your question the answer is 42 or 42/1

This depends on the kind of equation  the esential idea is to always do the same thing to both sides of the equation.  What you do and when you do it is based on what is in the problem.  we first make sure that all pieces of a variable are on the same side.  We do that by...

slope is rise over run so r-7      =     1 -2-6            2   we start by simplifying as much as we can r-7   =  1 -8         2   next we get rid of the denominators...

a square is a rectangle where every side is the same. the area of a rectangle is length times width length here is 49 and the side is 49 so the area is 49*49.  49*49=2401  so the area is 2401 ft^2 Does that make sense? please feel free to comment

the area of a room is length times width we have the area and the width A=LW 560=L(16) We solve for L to do that we divide both sides by 16 560/16=16L/16 35=L the length has to be 35 ft. does that make sense? please comment.

7*28=196 196/10=19.6 to solve these you multiply the top and divide the bottom I just relalized mister martinez is correct 7/10 x=28 .7x=28 divide both sides by .7 x=28/.7 x=40 so the total are 40 and 40-28=12 so 12 girls in the band. I was focusing on...

7/4 x≤ -5/8 is the problem and the multiplication property says you can do one of two things you can either multiply both sides by the same positive number and keep the same inequality sign or you can multiply both sides by the same negative number and reverse the inequality sign. we...