-2x-3=-7
<em>add 3 to both sides</em>
-2x=-4
<em>isolate x by diving both sides by -2</em>
Answer: x=2
Hope that helps!
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Dear!
In my best knowledge,your ans is b.
Is there a question or is this it ?
it basically answers itself because 2 times 3 is 6
15/5 is 3
So then you change the equation to be 12=15z-3 ( don’t forgot the negative sign)
Move the constant to the right side and change the sign
-15z= -3 -12
-3-12 is -15
Divide -15z= -15
Your final answer will be z= 1