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Answers
Solution:-
1)3x = 2x + 18
= 3x -2x =18
= x = 18
▪Putting the value of x in R.H.S and L.H.S
3 × 18 = ( 2 × 18) + 18
= 54 = 54
R.H.S = L.H.S
2) 5x + 9 = 5 + 3x
= 5x - 3x = 5-9
= 2x = -4
= x = -2
▪Putting the value of x in R.H.S and L.H.S
5 × (-2) + 9 = 5 +3 × (-2)
= -10 +9 = 5 + (-6)
= -1 = -1
R.H.S = L.H.S
3) 4z + 3 = 6 + 2z
= 4z -2z = 6 - 3
= 2z = 3
= z = 3/2
▪Putting the value of x in R.H.S and L.H.S
= (4×3/2)+3 = 6+(2×3/2)
= 6 +3 = 6 + 3
= 9 = 9
R.H.S = L.H.S
4) 2y + 5/3 = 26/3 -y
= 2y + y = 26/3 -5/3
= 3y = 26-5/3
= 3y = 21/3
= 3y= 7
▪Putting the value of x in R.H.S and L.H.S
= 2 × 7/3 + 5/3 = 26/3 -7/3
= 14/3 + 5/3 = 26/3 -7/3
= 14+5/3 = 26-7/3
= 19/3 = 19/3
R.H.S = L.H.S
5) 3m = 5m -8/5
= 3m - 5m = -8/5
= -2m = -8/5
= 2m × 5 = 8
= 10m = 8
= m = 8/10
= m = 4/5
▪Putting the value of x in R.H.S and L.H.S
= 3×4/5 = (5×4/5) - 8/5
= 12/5 = 4-8/5
= 12/5 = (20-8)/5
= 12/5 = 12/5
R.H.S = L.H.S