3 years ago

Please help me I just can’t figure this out. I’ll mark you brainiest if you know it but ONLY if you know it

Mathematics

1 answer:

bogdanovich [222]3 years ago

7 0

Answer:

Step-by-step explanation:

All square angles are 90° exactly 90° so we can use that to your advantage. since "7x + 3" is one of the square's angles, that means 7x + 3 must equal 90°. (7x + 3)° = 90°.

7x + 3 = 90

7x = 90 - 3

7x = 87

7x/7 = 87/7

x = 87/7

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