SOLUTION: the height of a triangle is one inch greater than 3 times its base. the area of the triangle is 15 square inches. what is the base of the triangle when the area of a triangle is 1/

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Question 312690: the height of a triangle is one inch greater than 3 times its base. the area of the triangle is 15 square inches. what is the base of the triangle when the area of a triangle is 1/2bh?
Answer by nyc_function(2741) About Me  (Show Source):
You can put this solution on YOUR website!
Let 3x = base of triangle
Let 3x + 1 = height of triangle
Let A = 15
You need to solve for x and then multiply your answer for x times 3 to find the base.
15 = (1/2)(3x)(3x + 1)
Can you take it from here?