Adding and Subtracting with Variables

t + t + t - t =

• 2t

• 4t

• 3t

• 5t

q + q - q - q =

• q

• 3q

• 0

• 2q

z - z - z + z + z =

• z

• 2z

• 3z

• -z

k + k + k + k - k - k =

• k

• 4k

• 3k

• 2k

m - m + m - m + m + m =

• m

• 2m

• 6m

• 4m

r - r + r - r + r + r + r =

• 5r

• 4r

• r

• 3r

d + d + d + d + d - d - d =

• d

• 3d

• 5d

• 7d

j + j - j - j + j + j + j + j =

• j

• 3j

• 4j

• 5j

y + y - y - y - y + y + y =

• 3y

• 7y

• 2y

• y

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