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Novay_Z [31]
3 years ago
15

How to solve -2(1-7n)-5n=34

Mathematics
2 answers:
emmainna [20.7K]3 years ago
8 0

-2(1-7n)-5n=34

distributive property

-2+14n-5n=34

combine like terms

-2+9n=34

+2       +2

9n=36

÷9   ÷9

n=4

OLEGan [10]3 years ago
6 0

-2(1-7n)-5n=34

Multiply the bracket by -2

(-2)(1)=-2

(-2)(-7n)=14n

-2+14n-5n=34

-2+9n=34

Move -2 to the other side. Sign changes from -2 to +2.

-2+2+9n=34+2

9n=34+2

9n=36

Divide by 9 for both sides

9n/9=36/9

n=4

Answer: n=4

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