Answer:
5x - 7= -12
5x - 7+7 = -12+ 7
5x= -5
x= -1
Step-by-step explanation:
hope this helped
<u><em>x = -1</em></u>
Isolate the variable by adding 7 on both sides. 5x-7+7 is 5x, and -12+7 is -5. Then, you get the equation 5x = -5. You have to then divide by 5 on both sides. 5x/5 is x and -5/5 is -1. You would then get that x = -1.
if x=10 y=-2 and z=-5 then...
we solve this to get...
<em>65</em>
therefore the answer to your question would be 65
hope this helped-have a good day bro cya)