Answer:
Idk if you have to solve it by X so I say it's X=2.125
Hey there!!
Equation given :
A = h ( a + b ) / 2
Multiply by 2 on both sides
2A = h ( a + b )
Divide by h on both sides
2A / h = a + b
Subtract by b on both sides
2A / h - ( b ) = a
Hence, the option ( a ) is the correct answer
Hope my answer helps!
Yes the answer is C. -2 to the left with open circle and 4 to the right with closed circle