Question

what is 3(3x+2) minus 3(3x-1)

Answer 1

so we need to simplify it first lets start with the first bracket

you have to multiply everything with whats outside the bracket

so at the moment we have 3 outside the bracket and we need to multiply 3 with everything inside the first bracket

so you will get

9x + 6 this is the first bracket expanded

now to do the second bracket you need to multiply everything inside the bracket with what is outside which is -3

so you will get

-9x + 3

and to simplify it further we should bring both expanded brackets together so you should get

9x + 6 - 9x + 3

rearrange abit to make it easier bring all the variables together and whole numbers together

so you will get

9x - 9x + 6 + 3

which equals to

x + 9

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