Answer:
x = 7
Step-by-step explanation:
I used the formula c^2 = a^2 + b^2
if you need further explanation,let me know
2x + ax - 7 > -12
2(-1) + a(-1) - 7 > -12
-2 - a - 7 > -12
-2 - 7 - a > -12
-9 - a > -12
<u> + 9 + 9</u>
<u>-a</u> > <u>-3</u>
-1 -1
a > 3
