3 years ago

HELPPPPPPPPPPPPPPPPPPP PLSSSSSSSSSSSSS

Mathematics

1 answer:

aleksandrvk [35]3 years ago

6 0

Answer:

x=20

Step-by-step explanation:

The whole thing is equal to 90 degrees

subtract 10 from (3x+10)

that leaves you with 80 degrees

combine the x's

x+3x=4x

4x=80

divide both sides by 4

x=20

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