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Ksenya-84 [330]
3 years ago
11

Solve for m 3-2(9+2m)=m

Mathematics
1 answer:
tester [92]3 years ago
7 0

Answer:

m=-3

Step-by-step explanation:

3-2(9+2m)=m

3-2(9)-2(2m)=m

3-18-4m=m

-15-4m=m

-15=m+4m

5m=-15

Divide by 5

5m/5=-15/5

m=-15/5

m=-3

To check if correct, subsitute m for -3 in the equation. And both sides of the equation must be equal

3-2(9+2m)=m

3-2(9+2(-3))=-3

3-2(9-6)=-3

3-2(3)=-3

3-6=-3

-3=-3

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Translate this verbal expression into an algebraic equation and solve: thirteen less than twice the sum of a number and six is 4
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Answer:

Please check the explanation.

Step-by-step explanation:

Given the verbal expression

''Thirteen less than twice the sum of a number and six is 47''.

Let us break down the verbal expression into an algebraic equation

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And finally

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2n+6-13 = 47

Therefore, the equation is:2n+6-13 = 47

Solving the algebraic expression

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Simplify

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\frac{2n}{2}=\frac{54}{2}

Simplify

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