
Subtract the numbers

Factor out 4 from the expression


When there is a - in front of an expression in parentheses, change the sign of each term in the expression to -

- <em>Thus, Options A and F are correct!!~</em>
12, or -12
12*12 = 144
-12*-12 = 144
The answer is 21 + 4x.
You find this answer by adding up all the sides.
9+12+4x= 21+4x ... you don't add 4x because it has a variable that we do not know of the value.
30% of £10 = £3
30% discount = £10 - £3 = £7
Cake costs £7
P.M is the time you do homework because you do it after school
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