Find the measure of angle J .will mark brainiest

<J=51°

Step-by-step explanation:

3x-2+4x-9+3x-9=180

10x-20=180

10x=200

x=20

<J=3x-9=3(20)-9=60-9=51°

Angle J = 51°

Step-by-step explanation: All angles add up to 180° in a triangle, so add every angle and set it equal to 180°.

(3x - 2) + (3x - 9) + (4x - 9) = 180

Add like terms:

10x - 20 = 180

Add 20 to both sides:

10x = 200

Divide both sides by 10:

x = 20

Now, plug x into angle J:

3(20) - 9

60 - 9

51

Angle J = 51°

Hope this helps!

step-by-step explanation:

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