Expressions

Level 1

100

What is the sum of 3x+4x?

7x

200

Simplify the expression 5y+2y−3y.

4y

300

2(x+3)

2x + 6

400

If a=2, what is the value of 3a+4?

10

500

Simplify (-2x²y⁴)(5x³y)

-10x⁵y⁵

Level 2

100

Expand the expression x(2x+3)

2x² + 3x

200

What is the result of 2(x+4)−3(x−2)

-x + 14

300

The sum of a number and 4. 

x + 4

400

If x=1 and y=2, what is the value of xy+x−y?

1

500

If x=-1 and y = -2, what is the value of x² - y ?

3