Question

Find the value of x

Answer 1

x = 10

Explanation:

• from the figure the two added angles are 90°, we solve with an equation

5x + 4 + 3x + 6 = 90

8x + 10 = 90

8x = 90 - 10

8x = 80

x = 80 : 8

x = 10

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• check

5 x 10 + 4 + 3 x 10 + 6 = 90

90 = 90

the answer is good