Question

Which expression is equivalent for this

Answer 1

Answer: Option A

Explanation:

Remember that

`+ * - = -\\- * + = -\\+ * + = +\\- * - = +\\`

We have the expression

`(1)/(2)x + (-7)-2*(1)/(4)-(-2)`

Solve first the multiplication of signs

`(1)/(2)x + (-7)-2(1)/(4)x-(-2)\\\\(1)/(2)x -7-2(1)/(4)x+2\ \ \ \ \ \ \ \ Note:\ 2(1)/(4)=2+(1)/(4)=(9)/(4)\\\\(1)/(2)x -(9)/(4)x-7+2\ \ \ \ \ \ \ \ Note:\ (1)/(2)-(9)/(4)=-(7)/(4)=-1(3)/(4)\\\\-1(3)/(4)x -5`