sur result in each case.
-21
4. Solve the following equations and check your result in
in 3x+3=30
ii. 2p + 14 = 0
ii. 5x + 10 =-15
iv. 3m = 21
vi. 4x+3-7x-3.
v. 5y=0
i. 5-3x=3-5x
viii. x + 11 = 5x - 25
5-x+1)=-8
F(x-2) - 8(4 – 3x) = 47
si 3 - 5 = 5+
xiv. m--2
xvi. 3(n-1) = 2n-11
xviii. 9y - 5(2y - 3) = 1-24
*. 15(x - 4) - 2x + 3)-
xxi. -* *
25 - 9) - 2q = 2(39 - 25)
Ex+3) – 3(5x-2)= 5(3r-4)-3(3r-4)
+3 -5= 2x - 2)
xvi. *-
-1)+}(25+5)-51050
=-*
xxvil 0.3 +0.7x=0.85%
5 = 0.25r+7
m. 0.71-(0.9-02
Answers
hii!
3x+3=30
3x=30-3
3x=27
x=27/3
x=9
check,
put x=9
LHS. RHS
3×9+3 30
27+3 30
30 30
2p+14=0
2p=0-14
2p= -14
p=-14/2
p=-7
check,
LHS. RHS
2×-7+14 0
-14+14 0
0 0
5x+10= -15
5x= -15-10
5x= -25
x= -25/5
x= -5
check,
LHS. RHS
5x+10. -15
5×-5+10. -15
-25+10. -15
-15. -15
3m=21
m=21/3
m=7
check,
LHS. RHS
3×7. 21
21. 21
5y=0
y=0/5
y=0
check,
LHS. RHS
5y. 0
5×0. 0
0. 0
5-3x=3-5x
-3x+5x=3-5
2x=-2
x= -2/2
x=-1
check,
LHS. RHS
5-3x. 3-5x
5-3×-1. 3-5×-1
5+3. 3+5
8. 8
x+11=5x-25
11+25=5x-1x
36=4x
4x=36
x=36/4
x=9
check,
LHS. RHS
9+11. 5×9-25
20. 45-25
20 20
3n-1=2n-11
3n-2n= -11+1
1n= -10
check,
LHS. RHS
3n-1. 2n-11
3×-10-1. 2×-10-11
-30-1. -20-11
-31. -31