1 + 2n
1 - 2n
5 (N + 1)
The English expression for the quotient of nine and the sum of a number and one is "nine divided by the sum of a number and one." This can also be written mathematically as ( \frac{9}{x + 1} ), where ( x ) represents the number.
The algebraic expression for "4 less than the sum of a number and 5" is (n + 5) - 4, where n represents the unknown number.
The expression "the sum of one and the product of four and a number x" can be written mathematically as (1 + 4x). Here, you multiply the number (x) by 4 and then add 1 to the result. Therefore, the final expression represents this combination of operations.
1 - 2n
5 (N + 1)
The English expression for the quotient of nine and the sum of a number and one is "nine divided by the sum of a number and one." This can also be written mathematically as ( \frac{9}{x + 1} ), where ( x ) represents the number.
1
2x^2 - 1
The algebraic expression for "4 less than the sum of a number and 5" is (n + 5) - 4, where n represents the unknown number.
The units digit of a two digit number exceeds twice the tens digit by 1. Find the number if the sum of its digits is 10.
18. 1+8=9 9x2=18
17x+(1+x)
The expression "the sum of one and the product of four and a number x" can be written mathematically as (1 + 4x). Here, you multiply the number (x) by 4 and then add 1 to the result. Therefore, the final expression represents this combination of operations.
y = 1/3 (x+7)
A number . . . ' x 'Its reciprocal . . . 1/xTwice its reciprocal . . . 2/xThe sum of (the number) and (twice its reciprocal) . . . x + 2/xThe equation:x + 2/x = 3Multiply each side of the equation by 'x' :x2 + 2 = 3xSubtract 3x from each side:x2 - 3x + 2 = 0Factor the left side, in order to see what's going on:(x - 1) (x - 2) = 0This is true if 'x' is either ' 1 ' or ' 2 '.x = 1The sum of the number and twice its reciprocal . . . 1 + 2/1 = 3X = 2The sum of the number and twice its reciprocal . . . 2 + 2/2 = 3