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Mathematics 7 Online
OpenStudy (anonymous):

in triangle the measures of

OpenStudy (campbell_st):

let A = x B = 4x -21 and C = 5x + 1 they add to 180 so collect like terms and solve for x

OpenStudy (campbell_st):

10x - 20 = 180 x = 20 A = 20, B = 59, B = 101

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