Question

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1. Solve the following equations by the method of cross-multiplication.
EXERCISE 7D
C. -7a = -28
121
g. 1.1d =
-3
10
2
an
b. 4b = -8
nek
a. 5a = 5
d. 0 = x = 6
e. 0.8 = 16
Ss.
9 3
f.
2.5
3
Z
2
i.
j.
2
X
7.
5
2. Solve the following equations by transposing terms from one side of the 2 sign to the
O
other.
a. x +7=5
b. 2x +3 - x=6
ee
C. 5x - 4=6x +6 d. 3x =12+2x+9
e. a +0.04=1.02 f. 6= x – 3.5
tal
g. m-6=2
1 3
h. d + ==-
2 4​

Answer 1

Answer:

hata sawan ki ghata fck

Answer 2

Answer:

bhai 1 ka sara questions accha se likho baaki 2 ka batata hoon

Explanation:

A.x+7=5

=x+7=5

=x=5-7

=x=-2

B.2x+3-x=6

=2x-x=6-3

=x=3

C.5x-4=6x+6

=5x-6x=6+4

=-x=10

D.3x=12+2x+9

=3x-2x=12+9

=x=21

E.a+0.04=1.02

=a=1.02-0.04

=a=0.98

F.6=x-3.5

=-x=-3.5-6

=-x=9.5

G.m-6=2

=m=2+6

=m=8

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