2x-4+x-5
Please explain
2x+x=3x
-4+-5=-9
3x-9=0
3x=9
x=3
2x-4+x-5
since there is no equation, there is nothing to solve for
all we can say , the above is
3x- 9
To simplify the expression 2x - 4 + x - 5, we can combine like terms. Like terms are terms that have the same variable raised to the same power.
First, let's combine the x terms. The x terms in the expression are 2x and x. When we add these together, we simply add the coefficients of the x terms together, keeping the variable unchanged. So, 2x + x is equal to 3x.
Now, let's combine the constant terms. The constant terms in the expression are -4 and -5. When we add these together, we simply add the two numbers together. So, -4 + (-5) is equal to -9.
Now, we have 3x - 9. This is the simplified form of the expression 2x - 4 + x - 5.