What the answer to this problem

Mathematics

1 answer:

g100num [7]3 years ago

8 0

The equation:

$(x-10)+40+(x-20)+3x=360\\\\(x+x+3x)+(-10+40-20)=360\\\\5x+10=360\ \ \ \ |-10\\\\5x=350\ \ \ \ |:5\\\\x=70$

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