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Earn +20 ptsQ: What is 5r plus 7 equals 13 plus 2r plus 3r?
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How do you Factor 3r squared equals 13r plus 10?
(3r + 2)(r - 5)
What is the sum of r - 10 and 100 - 3r?
r - 10 + 100 - 3r = -2r + 90
5 plus 3r equals 5r-19?
5+3R = 5R-19bring all the variables to the left side (in this case it will be R)remember when you bring numbers or variables the sign changes, if the variable or number is positive it shall change to negative and vise versa.3R-5R= -19-5-2R = -24R= -24/-2= 12checking:5+3R = 5R-19so now you substitute R to see if it equation is correct.5+3(12)= 5(12)-195+36=60-1941=41 SO CORRECT!
What is -3r-13 r equals 2 is?
-16r=2 divide both sides by -16 and your answer is -1/8
3r plus 18 divided by 12 equals 4r - 48 divided by 4?
(3r + 18)/12 = (4r - 48)/4Multiply both sides by 12: (3r + 18) = 3*(4r - 48)or: 3r + 18 = 12r - 144Subtract 3r from both sides: 18 = 9r - 144Add 144 to both sides: 162 = 9rDivide both sides by 9: 18 = rAnswer: r = 18
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