These points are reflective off of the y-axis. (9,2/5) reflected over the y-axis is (9,-2/5)
5x7=35 35/10=3.5
so 3.5 is the answer
3x-10>4+7x-3
3x-10>1+7x
-4x-10>1
-4x>11
x<-11/4
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You can not "solve" this, so to speak, rather simplify this expression. Take the "2" and multiply that by the "a" and the "3" in the parentheses. You will then have the simplified answer of: 2a times 6.
Hope that helps!