Need confirmation of an answer! the question was, rearrange to make y the subject d = 7y - 4 I ended up with d = 7y - 4 d + 4 = 7y - 4 + 4 d + 4/7 = 7y/7 d + 4/7 = y y = d+4/7
y=(d+4)/7
up to here its correct d + 4 = 7y - 4 + 4
are the brackets needed ? How will I know if they are or not ? What did I do wrong ?
but for the line d + 4/7 = 7y/7 correct form is (d+4)/7 = 7y/7
yup the brackets are neede when dividing or multiplying this way..
okay so brackets for division and multiplication and i dont understand your other reply.
it looks like text is missing
hope its easy for you now..
which statement..
but for the line d + 4/7 = 7y/7 correct form is (d+4)/7 = 7y/7
The answer is d + 4/7 = y.
i meant to say that d + 4/7 = 7y/7 is incorrect and (d+4)/7 = 7y/7 is correct form
okay so i went wrong because i didnt have brackets ? thats all that is wrong with my answer ?
looks like, use parentheses when in doubt :P
@ShellD93 yup
thank you :)
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