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Q: What is 9r-4s over 9r plus 6s?

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-9r = 20 + rsubtract r from both sides-10r = 20divide both sides by -10r = -2

9r-- think of the 'r' as '1r' and add like you normally would.

If we assume that "r" is unknown: -9r+8 or 8-9r It cannot be simplified further.

3r - 9r = 18 wright equaton -6r = 18 combine like terms r = -3 solve

(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

Related questions

You have to combine equal terms. -5r-9s+9r+3s-6 = -5r+9r-9s+3s-6 = 4r-6s-6

-9r plus 10r can be written as ( -9r + 10r) and the answer is r.

3+10-r+6r = -3+9r+0 13+5r = -3+9r 16 = 4r r = 4

It is 5n + 9r.

Combine the ' 9r ' and the ' -5r ' . Replace them with ' 4r '.

9r-1?

9-4r

9r2-4s2/9r+6sIt looks like you can factors the numerator(3r + 2s)(3r - 2s) [This is the factored form of 9r2-4s2]Put this back into the equation(3r+2s)(3r-2s)/9r+6sYou can also factor the denominator3(3r+2s)Put this back into the equation(3r+2s)(3r-2s)/3(3r+2s)You can cancel out the 3r+2s on top and bottom because they are the same they equal 1. Therefore your final answer is3r-2s over 3You could go further and say this is...r-(2/3)seither one is correct

-9r = 20 + rsubtract r from both sides-10r = 20divide both sides by -10r = -2

3(g + 6b + 3r)

16r2+9r

9r = 3r + 6 subtract 3r from both sides 6r = 6 divide both sides by 6 r=1 ■

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