I would but I don’t know how to explain it all!
        
                    
             
        
        
        
From question, 
(140-x)/7+70=120
Or, (140-x)/7=120-70
Or,140-x=50X7
Or, -x=350-140
Or, -x=210
 :• x = -210 answers
        
             
        
        
        
-1
Step-by-step explanation:
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Answer:
10 > v (if you don't trust me, check it yourself. Subsitute v for 10 in the first equation.
Step-by-step explanation:
1) 7 > v - 3
2) add 3 to both sides
3) so 7 plus 3 equals 10
So you basically do this
7 > v - 3 (ad 3 to both sides)
You get 10 > v (which is as simplified as possible)
Hope this helps! :)
 
        
             
        
        
        
5% of 1000 is 5 * 1000 / 100 = 5000 / 100 = 50.