3x + 8
-2( 3m + 9 ) =
Simple,its just like this: 6x+1+7-3 =6x+8-3 =6x+5
In the expression 5 + y + 8, y is a variable. We know how much 5 and 8 are, those are definite quantities. Only y has an unknown, and hence variable value.
It is the same as 8y+8z
3x + 8
-2( 3m + 9 ) =
Simplify each expression
Simple,its just like this: 6x+1+7-3 =6x+8-3 =6x+5
It is 16y+23x simplified
In the expression 5 + y + 8, y is a variable. We know how much 5 and 8 are, those are definite quantities. Only y has an unknown, and hence variable value.
It is the same as 8y+8z
36
z + 8 - 2 is an expression, not an equation. An expression cannot be solved. At best, you can simplify it to z + 6.
There is no variable in (8x12)+8, so it would be called an arithmetic expression. It would evaluate to 96+8 = 104.
To simplify the expression 16x - 8 - 5 - 6x - 4, first combine like terms. Combine the x terms by subtracting 6x from 16x to get 10x. Then, combine the constants by adding -8, -5, and -4 to get -17. Therefore, the simplified expression is 10x - 17.
-4, 11, 9, and -8 are constants. 'x' is the variable.