# Expression of a variable from the formula - 8th grade (13y) - math problems

#### Number of problems found: 523

• Simplify Simplify expression - which expression is equivalent to: 3(m + 2) − 4(2m − 9)
• Expressions Expression (3a-7).(3a+7) is identical with: ?
• Value of expression X=2, y=-5 and z=3 what is the value of x-2y?
• Simplify 2 Simplify expression: 5ab-7+3ba-9
• Unknown number 17 Milada said, I am thinking of a number such that I evaluate expression x1/3, the value of the expression would be 5. Which number Milada thinking?
• Which Which decimals when subtracted equal 3.89: a - b = 3.89
• Even / odd numbers a / Using variable n write two consecutive odd numbers. b / the sum of three consecutive odd numbers is 333. What are this numbers?
• The quotient 2 The quotient of the quantity k minus 10 and m
• Linear function Using one of the following forms x+p=q or px=q write an to represent these problems using x as the unknown variable Larry ran 7 more miles than Barry in a month, if Larry ran 20 miles how many did Barry run? please help its due tomorrow
• Midpoint 5 FM=3x-4, MG=5x-26, FG=? Point M is the midpoint of FG. Use the given information to find the missing measure or value.
• Sales off The price has decreased by 20%. How many percents do I have to raise the new price to be the same as before the cut?
• Simple equations Solve system of equations: 5x+3y=5 5x+7y=25
• Cross five The figure on the picture is composed of the same squares and has a content of 45cm². What's its perimeter?
• Finding the base Find the unknown base of percent: 12.5 percent of what = 16?
• Marriage sttus In our city, there are 3/5 of the women married to 2/3 of the men. Find what part of the population is free.
• Greg and Bill Greg is 18 years old. He is 6 less than 4 times Bill's age. How old is Bill?
• Circle r,D Calculate the diameter and radius of the circle if it has length 26.59 cm.
• Mean A student food the mean of 50 items as 38.6. When checking the work he found that he had taken one item as 50 why it should correctly read as 40 in this circumstances. What should be the correct mean?
• Lions If 8 lions is 40% how many would 75% be?
• Find the Find the surface of the cuboid if its edges have the dimensions a, 2/3a, 2a

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Expression of a variable from the formula - math word problems. Examples for 8th grade.