Write an equivalent expression for 5x + 2y + 3x
A. 10xy**
B. 7x + 3y
C. 8x + 2y
D. 10xy + 3x
Please check my answer!
so it 8x+2y right
yes
No.
Combine like terms.
its C 100%
no, 10xy = 5x * 2y
add up all the x terms
then add all the y terms.
To find the equivalent expression for 5x + 2y + 3x, we can combine the like terms. Like terms are terms that have the same variable(s) raised to the same power(s).
In this case, we have 5x and 3x, which are like terms because they both have the variable x raised to the first power. The coefficients of these terms, 5 and 3, can be added together to give us 8. Therefore, the equivalent expression becomes 8x + 2y.
Comparing this with the options provided:
A. 10xy** - This option includes the variable y and also the product xy, which is not present in the original expression. Therefore, it is not equivalent.
B. 7x + 3y - This option has a different coefficient for x and does not include the additional 3x. Therefore, it is not equivalent.
C. 8x + 2y - This option matches the equivalent expression we found, with the coefficients 8 and 2 correctly representing the original expression. Therefore, it is the correct answer.
D. 10xy + 3x - This option includes the product xy, which is not present in the original expression. Therefore, it is not equivalent.
So, the correct equivalent expression for 5x + 2y + 3x is C. 8x + 2y.