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x3 + 4x
x = number Four times the number (4x) is the same as the number increased by 78 (x + 78). Since they are both equal, then 4x = x + 78 4x - x = 78 3x = 78 x = 26
Let's name the first number "X" and the other number "Y" thus: 2X+5Y is the same thing as twice a number more than five times another
z is the number. I think the question might be ".. 7 times the number...? So 63+7z =11z-6 or 4z=57 or z=57/4 . If not, please be more specific.
X = number. 4X + 9 = 2X - 15 ===========
x3 + 4x
If ten times the number n decreased by 13 is equal to the square of the same number n increased by 3, then the value of n is either 8 or 2.
x = number Four times the number (4x) is the same as the number increased by 78 (x + 78). Since they are both equal, then 4x = x + 78 4x - x = 78 3x = 78 x = 26
18
Let the number be x: 4x-2 = 6x+2 4x-6x = 2+2 -2x = 4 x = -2
-424Four times the unknown number
3x+32=4x-15 3x-4x=-15-32 x=-47
Let the number be x:- 4x+40 = 100-x => 5x = 60 => x = 12 So the number is 12
Let's name the first number "X" and the other number "Y" thus: 2X+5Y is the same thing as twice a number more than five times another
There is no selected number so it would be a variable. The answer is 2n-9 (n is the number which you choose)
7x - 8 = 3x + 4 4x - 8 = 4 4x = 12 x = 3 Check it. 21 - 8 = 9 + 4 It checks.
4/7