x + ( x + 2 ) = ( x + 4 ) + 31 slove it by systematic method and check answer
Answers
Answer:
14/5 hope it helps youuuuuuuuuu
Answer:
=-31/42
Step-by-step explanation:
1)2x/5=8 verification :
x=8*5/2. 2*20/5=40/5
= 20. =8
therefore RHS=LHS
2)2x-1=3. verification:
2x=3+1=4. 2*2-1=4-1
x=4/2. =3
=2
therefore RHS=LHS
3)4x+5=13. verification:
4x=13-5 4*2+5=8+5
=8 =13
x=8/4
=2
therefore RHS=LHS
4)3/15+2x=8. verification :
2x=8-3/15 3/15+2(117/30)
=117/15 = 3/15+117/15
x=(117/15)/2 =120/15
=(117/15)*(1/2) =8
=117/30
therefore RHS=LHS
5)1/5x-1/3=1/2. verification :
1/5x=1/2+1/3 (1/5)(25/6)-1/3
=(3+2)/6 =25/30-1/3
=5/6 =5/6-1/3
x=(5/6)/(1/5) =(5-2)/6
=5/6*5 =3/6
=25/6. =1/2
therefore RHS=LHS
6)6x+3/7=-4. verification :
6x=-4-3/7. 6(-31/42)+3/7
6x=-31/7. =-31/7+3/7
x=(-31/7)/6. =-28/7
=(-31/7)*(1/6) =-4
=-31/42
therefore RHS=LHS
I hope you have understood
THANK U