15x+10 80 I need help plzzzzzzz

Mathematics

2 answers:

mash [69]3 years ago

5 0

Answer:

Step-by-step explanation:

180-80=100

100-10=90

90 divided by 15=6

grandymaker [24]3 years ago

3 0

Explanation:

they’re supplementary angles (they add up to 180°), so we need to set up an equation by adding them to equal 180°:

15x + 10 + 80 = 180

combine like terms

15x +90 = 180

subtract 90 from move sides

15x = 90

divide both sides by 15

x= 6

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