(21-3)times(7+4)
If you mean: x^2+15-3x then its value is 19 when x equals 4
The value is 1 if (x, y) = (4, 3) and 0 otherwise.
As an algebraic expression it is simply: 18-x
If x stays the same the expression stays the same. Since the expression involves negative x, the value of the expression decreases as x increases.
5X - 2Y X = 9 Y = 4 5(9) - 2(4) 45 - 8 37 is the value
It is an algebraic expression that can be simplified depending on the plus or minus value of 4
8
4
4
If you mean: x^2+15-3x then its value is 19 when x equals 4
-4 (-9 +5 = -4)
The value is 1 if (x, y) = (4, 3) and 0 otherwise.
As an algebraic expression it is simply: 18-x
Just substitute 4 in for X. 13 - 2(4) 13 - 8 = 5 ===
The value of x is the unknown variable and the given expression can be simplified to: 4x-15
Say you have an algebraic expression y = 3x +4 For a given value of x = 5 substitute that number in place of x in the expression, so in this case y = 3(5) + 4 = 19
X2 Is an algebraic expression. X2 = 4 Is an equation that can be solved for X. The variable, X, in this case, has two values. In the expression any value can be substituted for X.