Answer:
The exterior angle of 77 degrees is equal to the sum of angle M and L, so we can create an equation where (10x + 1) + (6x - 4) = 77 and solve it. First we can combine like terms and add numbers on the left side of the equation: 16x - 3 = 77. Next, we can add 3 to both sides of this equation: 16x = 80. Lastly, we can isolate the x variable by dividing both sides of this equation by 16: x = 5.
Step-by-step explanation:
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