3x actually means 3 * x.So we are going to follow BODMAS rule...
3x-5-10
=3*4-5-10
=12-5-10
=7-10
=-3
Here's your answer..
The equivalent expression of 3x-9 plus 3x plus 5 is negative 4.
5
The idea is to replace "x" by "1.7" in this case, then do all the indicated calculations.
3x+4=10 To solve: 3x+4=10 3x=6 x=2
The question gives an expression, not an equation. An expression cannot have a solution.
You have to substitute a value for the letter variable in the expression. This is what we call evaluating the algebraic expression. An example would be 3x+1=7, when x=2.
You have to substitute a value for the letter variable in the expression. This is what we call evaluating the algebraic expression. An example would be 3x+1=7, when x=2.
explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?
You have to substitute a value for the letter variable in the expression. This is what we call evaluating the algebraic expression. An example would be 3x+1=7, when x=2.
When x = 2, 3x + 5 = 11.
the answers is d
Given a value of x, find the value for -3x + 2
When you have an algebraic expression with variables in it, you need to know the the value of each variable. The value of the expression is found by replacing the variables with their values and simplifying. For example, evaluate 2xy-3x if x=5 and y=-1. 2xy-3x = 2*5*(-1) -3*5 = -10-15 = -25.
In math evaluating is where you simplify an expression as much as possible. For example to evaluate 5+2 you simplify it so it is 7. To evaluate 5x+3x+4y you simplify it to 8x+4y.
10 + 3x
If you mean -3(x+10) then it is -3x-30
10