find four less than the number if 7 is subtracted from number and result multiplied by 12 giving a result 6 times the number
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Answer:
Hey mate, Here's ur answer...!!
Step-by-step explanation:
Please refer to the attached file..!!
Answer:
Step-by-step explanation:
Since %28a-7%29%2A12 is the same as 12%28a-7%29 we can use the distributive law and expand it to 12a+-+12%2A7+-+6a+=+0+ which becomes 12a-+84-+6a+=+0
Since we have 12a+-+84 we need to move the 84 to the other side, and have all the a's on the other. We do this by adding 84 on the left hand side to cancel out the -84 and adding 84 to 0 on the right hand side. This makes the equation 12a-6a+=+84. Since 12a - 6a is 6a , we can simplify our equation to 6a+=+84 to get rid of the 6 in 6a we need to divide both sides by 6 to get a by itself.
This makes the equation %286a%2F6%29+=+%2884%2F6%29 which is a=+14. We can confirm this by replacing the number in your original equation with 14
%2814-7%29%2A12+=+6%2A14
7%2A12=+84
this makes 84+=+84.