Will mark brainliest question is in attachment

m<CBD = 68 degrees

Step-by-step explanation:

Add both of the given angle measures and set them equal to 90 degrees.

4x + 52 + 8x - 10 = 90    Combine like terms

12x + 42 = 90

      - 42  - 42                  Subtract 42 from both sides

12x = 48                           Divide both sides by 12

x = 4

Now plug this into the equation for m<CBD

4(4) + 52       Multiply

16 + 52          Add

68 degrees

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this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.