20
3x + 4x = 847x = 84divide both sides by 7x = 12
a+b=84 a=3b 3b=84-b 4b=84 b=21 a=3*21 a=63 The two numbers are 21 and 63lets call the one number X and the other Y so y equals 3X so 3X+X equals 84 so 4X equals 84 we divide by 4 so x equals 21 so y equals 21*3 equals 63 so the two numbers are 63 and 21
It's 24 see. 84/3=28 and then 28*3=84
3x=4y-x 4x=4y x=y
x + 3x = 40 4x = 40 x = 10.
Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "times", "equals". There is no operator between 3x and 84.
3x + 4x = 847x = 84divide both sides by 7x = 12
lets call the one number X and the other Y so y equals 3X so 3X plus X equals 84 so 4X equals 84 we divide by 4 so x equals 21 so y equals 21 times 3 equals 63 so the two numbers are 63 and 21
a+b=84 a=3b 3b=84-b 4b=84 b=21 a=3*21 a=63 The two numbers are 21 and 63lets call the one number X and the other Y so y equals 3X so 3X+X equals 84 so 4X equals 84 we divide by 4 so x equals 21 so y equals 21*3 equals 63 so the two numbers are 63 and 21
If x-3x=18 then x equals -9
In order to solve for x, there must be an x in the equation.If you meant to say 3x/14=84, then 3x=14(84), so x=392 If you meant to say 3/14x=84, then 84x=3/14, so x=0.00255102041 If you meant to say 3/14=84x, then the above line is the answer.
3x+12 = 18 3x = 18-12 3x = 6 x = 2
If x equals 8, then 3x equals 24. 24-x would equal 16.
3x*x = 3x2
It's 24 see. 84/3=28 and then 28*3=84
3x=24 x=8
3x-4x=12 that means -x equals 12 so x equals -12