This is my math problem: I a triangle ABC, angle B is 3 times angle A and angle C is 2degrees less than 6 times angle A. Find the size of the angles. ? Can anyone solve this in equation steps?

right, so this is a problem where you have three variables (the three angles), and so you'll need three equations to solve it

so let's write down three equations

1. B = 3A

2. C = 6A - 2

so there's one equation that's true for all triangles

3. A+B+C = 180 (the sum of all angles in a triangle is always 180 degrees)

now what you need to do is substitute until you get an equation with all one variable

how about let's try and get all A's

so we know B=3A, and C=6A - 2

so let's substitute both of those into the third equation - A+B+C = 180

so A + (3A) + (6A-2) = 180

10A - 2 = 180

10A = 182

A = 18.2

now that you have the value of A, you need to substitute it back into other equations to get B and C

if you do that, you'll have the answer

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