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andrezito [222]
3 years ago
15

Solve for x: -3x + 4 = -8

Mathematics
2 answers:
andrew11 [14]3 years ago
6 0
Hi there, to solve this problem we have to do this, Add -4 on both sides, 4+-4+-3x=-8+-4. Now you should have, -3x=-12. Lastly, we divide each side by -3, which gives us x=4. Therefore, the answer is x=4. Hoped I helped. :)
Virty [35]3 years ago
4 0
- 3 x + 4 = - 8

subtract 4 from both sides :

- 3 x + 4 - 4 = - 8 - 4

- 3 x = - 12

Divide both sides by : - 3

- 3 x / 3 = - 12 / - 3

x = 12 / 3

x = 4

hope this helps!
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Check the picture below, the height there uses feet, but nevermind that, we can simply let it be meters, like in this case.

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how hight does it go?  well, that'd be the y-coordinate of the vertex.

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3 0
3 years ago
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