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Simplify: 5k + 7k
12k
Solve: t + 7 = 23
t = 16
Solve: 8c = 48
c = 6
Helen has k pencils. Chris has 8 fewer than Helen. Write an expression for the number of pencils Chris has.
k - 8
Solve: 28 - f = 11
f = 17
Yasmin has £y. Greg has triple the amount Yasmin has. Write an expression for the amount of money Greg has.
£3y or 3y
When m = 6, what is the value of 5m - 3?
27
Simplify: 5u - 9u
-4u
Write an expression for the perimeter of a rectangle that has a length of 2y and a width of 7.
4y + 14
When f = 5, what is the value of 30 - 4f ?
10
Solve: 6n - 7 = 11
n = 3
Solve: 3 - r = 10
r = -7
Simplify: 7e + 5 - e
6e + 5 or 5 + 6e
