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Find the equation that can be used to find the value of x in the diagram below make sure to simplify

Find the equation that can be used to find the value of x in the diagram below make-example-1
User COLD ICE
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1 Answer

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6x + 5 + 4x + 5 = 90

x = 8

Step-by-step explanation:

The square/box in red represent angle 90 degrees.

This means the sum of angles in it is 90 degrees

The equation:

6x + 5 + 4x + 5 = 90 (sum of angles in a right angle)

simplify by collecting like terms:

6x + 4x = 5 + 5 = 90

10x + 10 = 90

subtract 10 from both sides:

10x + 10 - 10 = 90 - 10

10x + 0 = 80

10x = 80

divide both sides by 10;

10x/10 = 80/10

x = 8

User EMko
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