Match the equivalent expressions. 11x + y 7x − 8y 4(x + y) − 3(x + y) 3x + 3y + 2(2x − y) 7x + y 11x − y 5(x + y) + 6(x − y) (5x − 3y) − x + 3x − 5y x − 4x + 6y + (14x − 5y)

19.

step-by-step explanation:

you add the 9 in the tens column since it is a single digit and 9 plus zero is 9 so it is 19

choice b is correct

step-by-step explanation:

we have been given the following system of inequalities;

we are required to graph the solution to the system of inequalities. using a graphing tool, the graph of the system is as shown in the attachment. the continuous line represents the graph of while the dotted line represents .

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23