Rephrase the word difficulty as variables and numbers. The answer/ number the you"re trying to find = x.

7 less (negative) 보다 3 time the number (x) = 23

-7 + 3x = 23

Now deal with for x.

-7 +7 + 3x = 23 +7

3x = 30

3x/3 = 30/3

x = 10

-7 + 3(10) = 23

-7 + 30 = 23

23 = 23

You are watching: 7 less than 3 times a number

Almaz S.

give thanks to you therefore much! But, can you describe please, why we have -7 and also not positive, and also why there"s + between two -7 and also 3x since the difficulty says that seven is less than trimple a number? give thanks to you!

Melodie B.

hello Almaz, sure! It"s an unfavorable bc it claims "7 less than." Less method negative. For example, Bob has 7 less marbles 보다 Sam. Sam has actually 10 marbles, how numerous marbles walk Bob have? You deserve to write it together -7 + 10 = 3 or 10 - 7 = 3 to number out how many marbles the Bob has.If Bob had 7 more marbles than Sam, climate the equation would certainly be 7 +10 = 17 marbles.

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