Question 4%0D%0AA)%0D%0AIdentify the variable in the following expression%0D%0A%0D%0A7+3x+4+7x+x6%0D%0A7%0D%0A+%0D%0A3%0D%0A%0D%0A+%0D%0A4%0D%0A+%0D%0A7%0D%0A%0D%0A+%0D%0A%0D%0A6%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0A1%0D%0A1%0D%0A%0D%0A2%0D%0A2%0D%0A%0D%0A3%0D%0A3%0D%0A%0D%0A4%0D%0A4%0D%0A%0D%0A5%0D%0A5%0D%0A%0D%0A6%0D%0A6%0D%0A%0D%0A7%0D%0A7%0D%0A%0D%0Ax

The variable in the expression 7+3x+4+7x+x6 is x.