Activities 2

2.1)

Calculate and simplify the expressions:

a)
2x + x + 3y
b)
x + 2y 3x
c)
10a 5b + 2b 3a
d)
z + 5a 6z + 2z
e)
2y + 3x + 4x 3y

2.2)

Calculate and simplify the expressions:

a)
x + y + 2x + 5x + 2y 6x + 3y 5y
b)
4a 2b + a 5b 7a + 12b
c)
16a 2c + 15b + 8a 7b + 9c a + 21c
d)
16x + 7y 5z + y 12x 6y + 4z + 13x

2.3)

Calculate and simplify the expressions:

a)
1 4x 2y + 7x + 5 + y
b)
9a 5a + 2 a
c)
6a 3 a + 2
d)
4x 3y 4 + 2x 3
e)
a + 3 + 5a 5
f)
3a 4 + 2b + a
g)
3c + 7h + 5c 4c + 7h
h)
8p + 9p 5t 5p + 8t
i)
k + k + 2k + 4r 3k 3r

a)
1 4x 2y + 7x + 5 + y
b)
9a 5a + 2 a
c)
6a 3 a + 2
d)
4x 3y 4 + 2x 3
e)
a + 3 + 5a 5
f)
3a 4 + 2b + a
g)
3c + 7h + 5c 4c + 7h
h)
8p + 9p 5t 5p + 8t
i)
k + k + 2k + 4r 3k 3r

You can find the solutions here.

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