Asked by Reyna
The first side of a triangle is 7 cm shorter than twice the second side. The third side is 4 cm longer than the second side. The perimeter is 77 cm. Which equation represents how to find each side?
a) 4x + 3 = 77
b) 3x - 11 = 77
c) 3x - 3 = 77
d) 4x - 3 = 77
a) 4x + 3 = 77
b) 3x - 11 = 77
c) 3x - 3 = 77
d) 4x - 3 = 77
Answers
Answered by
oobleck
add up the sides to get the perimeter:
x-7 + x + x+4 = 77
now simplify
x-7 + x + x+4 = 77
now simplify
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