Question

. Solve the following equations. Check your answer.
(a) (i) x+2=8 (ii) 6=p+5 (iii) x+5½=7½ (iv) 6.5= x+4.3
(b) (i) y- 3 =4 (ii) 8=c-3 (iii) 9/2 = m - 7/2 (iv) z-10.7= 1.3
(c) (i) 5x=10 (ii) 45=9t (iii) 0.2y=3 (iv) 7n=1.05
(d) (i) a/2 =8 (ii) 15=d/2 (iii) n/3= -2 (iv) 1.8m=36


pls do this all pls my exams are coming​

Answer 1

Answer:

a)i) x+2=8

x=8-2

x=6

(ii)6=p+5

p=6-5

p=1

(iii)x+5½=7½

x+5/2=7/2

x=7/2-5/2

x=(7-5)/2

x=2/2

x=1

(iv)6.5=x+4.3

x=6.5-4.3

x=2.2

b)i)y-3=4

y=4+3

y=7

(ii)8=c-3

c=8+3

c=11

(iii)9/2=m-7/2

m=9/2+7/2

m=(9+7)/2

m=16/2

m=8

(iv)z-10.7=1.3

z=1.3+10.7

z=12

c)i)5x=10

x=10/5

x=2

(ii)45=9t

t=45/9

t=5

(iii)0.2y=3

y=3/0.2

Multiply numerator and denominator by 10

y=30/2

y=15

(iv)7n=1.05

n=1.05/7

n=0.15

d)i)a/2=8

a=8×2

a=16

(ii)15=d/2

d=15×2

d=30

(iii)n/3=(-2)

n=(-2)×3

n=(-6)

(iv)1.8m=36

m=36/1.8

m=20