### Answers − Expand and Simplify 1

#### 1.   Expand and simplify 2(3 + a) + 4(5 + a)

(a)   Expand by multiplying out the brackets

(b)   Simplify by putting like terms together

#### 2.   Expand and simplify 5(4 + s) − 3(2 − 2s)

(a)   Expand by multiplying out the brackets

(b)   Simplify by putting like terms together

#### 3.   Expand and simplify 11(y + 2) + 14(2y + 3)

(a)   Expand by multiplying out the brackets

(b)   Simplify by putting like terms together

#### 4.   Expand and simplify a(17b + 11) − 7b(2a + 4)

(a)   Expand by multiplying out the brackets

(b)   Simplify by putting like terms together

#### 5.   Expand and simplify 30(x + y) + 17(2x + 3y)

(a)   Expand by multiplying out the brackets

(b)   Simplify by putting like terms together

#### 6.   Expand and simplify x(3 + 20y) + 10y(4 − 2x)

(a)   Expand by multiplying out the brackets

(b)   Simplify by putting like terms together

#### 7.   Expand and simplify 4(7a + 10b) − 6(8a − 2b)

(a)   Expand by multiplying out the brackets

(b)   Simplify by putting like terms together

#### 8.   Expand and simplify 2(9x + 16y) − 4(2x − 8y)

(a)   Expand by multiplying out the brackets

(b)   Simplify by putting like terms together

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