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If 7 less than twice a number is negative 5. What is the number?
Let the number be ( x ). The equation can be set up as ( 2x - 7 = -5 ). Adding 7 to both sides gives ( 2x = 2 ), and dividing by 2 results in ( x = 1 ). Thus, the number is 1.
The reciprocal of a number plus the reciprocal of twice the number equals one half?
Let the number be x.Reciprocal of x = 1/xReciprocal of x + Reciprocal of 2x = 1/x + 1/(2x) = (3/2)x = 1.5xIf the value of x = 1/3 then answer is one half.If the value of x = 2 then answer is 3.So, the statement is true only for x = 1/3.___________1/x + 1/2x = 1/2Multiplying both sides of the equation by 2x gives:2x/x + 2x/2x = 2x/2This simplifies to:2 + 1 = xx = 3 (i.e. the reciprocal is 1/3)
How do you represent an odd integer with a variable?
(2x-1) or (2x+1) must both be odd numbers.
How do you factor out 2x2 -2x?
2x2- 2x = 2x*(x - 1)
What is the opposite word for the prime number?
A composite number is a number that has more divisors than 1 and itself.
What is 1 more than two times a number?
2x + 1
1 more than 8 times a whole number is 25 more than 2 times that number?
Let the unknown number be x: 8x+1 = 2x+25 8x-2x = 25-1 6x = 24 x = 4
What is five more than twice a number is 7?
If you want "the number" write 5 + 2X = 7 2X = 2 X = 1. So "five more than twice of one is 7.
What is nine more than four times a number is the same as one less than twice the number?
9+4x=2x-1 2x=-10 x=-5
Twelve more than half a number is at most 8?
12 more than a 1/2 a number (x) is at most (< or = to) 8. Simplify 12+1/2x is < or = to 8
Half of a number is ten more than triple the number What is the number?
Use the equasion: 1/2x = 3x + 10 to get the answer of negative 4.
How do you write 11 more than twice a number is -1 as an equation?
It is: 2x+11 = -1 and the vaue of x works out as -6
What is an unknown number increased by twice the same unknown number is more than the unknown number less one?
Let's call the unknown number x. We want for what number(s) is x + 2x > x -1 true. x + 2x > x -1 Combine like terms: 3x > x - 1 Subtract x from each side: 2x > -1 Divide each side by 2: x > -1/2 Any number greater than -1/2 will work.
What does one more than twice as many mean?
"One more than twice as many" refers to a quantity that is double a given number and then increased by one. For example, if the original number is ( x ), then twice that number is ( 2x ), and one more than that would be ( 2x + 1 ). This expression is often used in mathematical contexts to describe a relationship or to set up an equation.
How would you write one half of a number is fourteen more than two times the number?
(1/2)x =+14 + 2x or x/2 = 2x +14 or 1/2(x) = 2x + 14 --> x = 4x + 28 ----> 3x=-28 so x = -28/3
Which equation means that 7 less than twice a number is -1?
2x - 7 = -1
What is the alegbraic expression of 1 less than twice the square of a number?
2x^2 - 1
