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marin [14]
3 years ago
9

5x+3y=28 3x+y=12 please solve algebraically

Mathematics
1 answer:
Aleks04 [339]3 years ago
8 0
The answer is x= 2, y = 6

Solve for y in the second equation, so you have y= -3x + 12. Now plug that in for y in the first equation: 5x + 3( -3x +12) = 28.
Now simplify: 5x + -9x + 36 = 28: -4x = -8; so x = 2.
Now plug x=2 into either equation to solve for y:
3(2) + y = 12; 6 + y = 12; so y = 6
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Morgarella [4.7K]

Based on the angles addition theorem, the measure of the original angle = 44°.

<h3>What is the Angles Addition Theorem?</h3>

The angles addition theorem states that if an angle is bisected to form two smaller angles, then the sum of the measures of the two smaller angles equals the measure of the original angle that is bisected.

Given that the two smaller angles formed when bisected are: (3+30)° and (5+6)°. Based on the angles addition theorem:

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Learn more about the angles addition theorem on:

brainly.com/question/13545681

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