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What is 2x + 5 = 15 - (-49) x 5

What is 2x + 5 = 15 - (-49) x 5
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1 vote
What is 2x + 5 = 15 - (-49) x 5

User VinnyD
by
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2 Answers

6 votes
So, you do -49 * 5 first because multiplication is before addition, which is -245.
15 - (-245) turns into addition, so the right side of the equation is 260.

Move the 5 over. 260-5 = 255

2x = 255, so x =255/2 or 127.5
User David Duran
by
8.4k points
3 votes
2x + 5 = 15 - (-49) x 5
combine like terms

2x + 5 = 320
subtract 5 from each side

2x = 315
divide by 2 on each side

x = 157.5
User Alvescleiton
by
8.0k points
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