You could do any of those, but I would do Add -9 then the equation is -4=5x then divide everything by 5 then x = -.8
Answer:
It could be 11/10
Step-by-step explanation:
You would move 1 over on the x axis, and 1.5 up on the y axis, 2 over, then 3 up, and so forth
To make ∠ADC is a right angle, value of x will be 7.
From given figure, it is observed that Angle ADC is combination of two angles ADB and BDC.
∠ADC=∠ADB+∠BDC
Since, ∠ADC is right angle.
So, ∠ADC=90 degree
90=∠ADB+∠BDC
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