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Mathematics 7 Online
OpenStudy (anonymous):

x = 50 and y = 80 x = 2 and y = 30 x = 20 and y = 20 x = 1 and y = 60 Solve for x and y

OpenStudy (anonymous):

OpenStudy (anonymous):

@jim_thompson5910

OpenStudy (anonymous):

Do you know how to add subtract multiply and divide?

jimthompson5910 (jim_thompson5910):

the triangles are congruent, so 30x+20 = 50 and y+20 = 80

OpenStudy (anonymous):

yes! but there are two possible anwsers

jimthompson5910 (jim_thompson5910):

What do you get when you solve 30x+20 = 50 ?

OpenStudy (anonymous):

Solve for X

OpenStudy (anonymous):

You want x to be by itself. Let's have it be on the left side. We don't want 20 on the left side so we have to subtract 20 on the left side but that means we also have to subtract 20 on the right side. 30x+20 = 50 30x+20 -20 = 50

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