Wiki User
∙ 11y agoThe question cannot be answered because it is ambiguous.
Does "twice the sum of 16 and a number" mean "2*16 + x" or does it mean "2*(16 + x)"
Wiki User
∙ 11y ago2x - 4 = 6x -4 = 4x x = -1
Whatever the variable was.
Yes.
5
x3 + 4x
Nine less than twice a number equals the same number increased by four?
2x - 4 = 6x -4 = 4x x = -1
I guess you could use a search engine or maybe one of the address designators: but guess whatt???? Try it twice, or more!! Bet you do not come up with the same number twice.
20
1 (one)
The answer is 42
98765
Whatever the variable was.
Yes.
Let length be denoted by l, and width by w. Length is 4 ft more than twice the width => l = 2w + 4 five times the width is the same as twice the length increased by 10 feet. =>5w = 2l + 10 Solving the two equations we get l = 40 w = 18 So, the rectangle is 40 ft long and 18 ft wide.
18
If you can use the same number twice, such as 11 or 22, then there are 100 possible numbers (00, and 01-99). If you can not use the same number twice, the answer is 90.