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Debora [2.8K]
3 years ago
7

The angles of a quadrilateral are represented by 9x, (20x + 16) (12x + 10), and (7x- 2)°. What is the value of x?

Mathematics
1 answer:
Pepsi [2]3 years ago
5 0

Answer:

x=7

Step-by-step explanation:

9x+20x+16+12x+10+7x-2=360

48x+24=360

48x=360-24

48 x=336

x=336/48=7

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Solve for e. 9e-7=7e-11
Murljashka [212]
<span>Simplifying 9e + -7 = 7e + -11
 Reorder the terms: -7 + 9e = 7e + -11
Reorder the terms: -7 + 9e = -11 + 7e
 Solving -7 + 9e = -11 + 7e
 Solving for variable 'e'. Move all terms containing e to the left, all other terms to the right.
Add '-7e' to each side of the equation. -7 + 9e + -7e = -11 + 7e + -7e Combine like terms: 9e + -7e = 2e -7 + 2e = -11 + 7e + -7e
 Combine like terms: 7e + -7e = 0 -7 + 2e = -11 + 0 -7 + 2e = -11
 Add '7' to each side of the equation.
</span><span>Combine like terms: -7 + 7 = 0 0 + 2e = -11 + 7 2e = -11 + 7
</span><span>Combine like terms: -11 + 7 = -4 2e = -4
Divide each side by '2'. e = -2
 Simplifying e = -2</span>
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