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That depends on what the question is. What you gave is simply a relationship between two variables. You can simplify it like this:
4x + 8 = 2r + 20
(4x + 8) / 2 = (2r + 20) / 2
2x + 4 = r + 10
2x + 4 - 4 = r + 10 - 4
2x = r + 6
You can then solve for x by dividing both sides by two:
2x / 2 = (r + 6) / 2
x = r/2 + 3
You could also solve for r by subtracting six from both sides, and rearranging the equation:
2x = r + 6
2x - 6 = r + 6 - 6
2x - 6 = r
r = 2x - 6
r = 2(x - 3)
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What is 4x plus 2y equals 20 in slope intercept form?
4x+2y = 20 2y = -4x+20 y = -2x+10
What is 4x-20-5 equals 6x plus 7.4-4x?
4x-15=6x-4x 4x-22.4=2x 2x=22.4 x=11.2
Solve -4x plus 3 equals 23 plus 6x?
-4x+3 = 23+6x -4x-6x = 23-3 -10x = 20 x = -2
How do you solve 4x-5y plus 20 equals 0?
4x-5y+20 = 0 -5y = -4x-20 y = 4/5x+4 which is now in slope intercept form
-y equals 4x plus 1 4x plus y equals 2?
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X plus x plus x plus x equals 20?
4x =20x=20/4x=5
5x plus 20 equals 4x plus 30?
5x + 20 = 4x +30 5x - 4x = 30 - 20 x = 10
What is 4x plus -12 equals 8?
If: 4x+(-12) = 8 then 4x = 20 and x = 5
What is 4x plus 2y equals 20 in slope intercept form?
4x+2y = 20 2y = -4x+20 y = -2x+10
What is 4x plus 20 equals 60?
x = 10
What is 4x plus 8 equals 20?
x=3
How do you solve -20 equals -4x plus 6?
-20 = -4x +6 add 20 to both sides 0 = -4x +26 4x = 26 x = 26/4 = 6.5
What is 4x-20-5 equals 6x plus 7.4-4x?
4x-15=6x-4x 4x-22.4=2x 2x=22.4 x=11.2
Solve -4x plus 3 equals 23 plus 6x?
-4x+3 = 23+6x -4x-6x = 23-3 -10x = 20 x = -2
How do you solve 4x-5y plus 20 equals 0?
4x-5y+20 = 0 -5y = -4x-20 y = 4/5x+4 which is now in slope intercept form
What is the substitution of4x plus 4y equals 16 and y equals 5?
4x+4y=16 y=5 4x+ 20=16 4x=-4 x=-1
-y equals 4x plus 1 4x plus y equals 2?
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