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Set up the equation to solve for x
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3 votes
Set up the equation to solve for x

Set up the equation to solve for x-example-1
User Gosr
by
5.8k points

1 Answer

2 votes

The three inside angles of a triangle need to equal 180 degrees.

Add the 3 equations together and set to equal 180:


7x+4 + 5x+3 + 2x+5 = 180

Simplify by combining the like terms:

14x + 12 = 180

Subtract 12 from each side:

14x = 168

Divide both sides by 14:

x = 168/14

x = 12

User Nongthonbam Tonthoi
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6.0k points
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