8(30) - 40 = 240 - 40 = 200.
explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?
It is x*x + y*y*y*y
Without further information, it is not possible to evaluate or simplify the expression.
When x = 2, 3x + 5 = 11.
You don't "solve" an expression. You can solve an equation; an expression can be simplified or otherwise manipulated, and if you know the value of "x" (in this case), you can evaluate its value.
The answer is x = 5. There is nothing to evaluate there!
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explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?
Take 3 and substitute into the expression given to you but not mentioned in the question here and evaluate the expression. "Sub and Solve" I say.
It is x*x + y*y*y*y
To evaluate the expression (3xy + 4y^3) when (y = 2) and (x = 5), substitute the values into the expression. This gives: [ 3(5)(2) + 4(2^3) = 30 + 4(8) = 30 + 32 = 62. ] Thus, the value of the expression is 62.
x264: Without knowing the value of x you cannot evaluate this expression.
Without further information, it is not possible to evaluate or simplify the expression.
X = 7 9x - 2x = 49
X = 7 9x - 2x = 49
It depends on the value of x. The x is a variable. To evaluate an expression, you need to have a value (number) to replace the x.
Evaluate the expression below when x = 2.3x2-2x+4