1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard VII
Mathematics
Integers
Find the valu...
Question
Find the value of 'x'. [3 MARKS]
(i)
4
x
+
5
=
25
(ii)
x
−
2
1
3
=
5
1
2
(iii)
(
7
x
+
8
)
÷
7
=
8
Open in App
Solution
Each Option: 1 Mark
(i)
4
x
+
5
=
25
⇒
4
x
=
25
−
5
⇒
4
x
=
20
Divide by 4 on both sides,
4
x
÷
4
=
20
÷
4
x
=
5
(ii)
x
−
2
1
3
=
5
1
2
⇒
x
−
7
3
=
11
2
⇒
3
x
−
7
3
=
11
2
⇒
3
x
=
11
2
×
3
+
7
⇒
3
x
=
33
+
14
2
=
47
2
⇒
x
=
47
6
=
7
5
6
=
7.833
(iii)
(
7
x
+
8
)
÷
7
=
8
⇒
7
x
+
8
7
=
8
⇒
7
x
=
8
×
7
−
8
=
56
−
8
=
48
⇒
x
=
48
7
=
6
6
7
=
6.86
Suggest Corrections
0
Similar questions
Q.
Find the value of '
x
'.
(i)
4
x
+
5
=
25
(ii)
x
−
2
1
3
=
5
1
2
(iii)
(
7
x
+
8
)
÷
7
=
8
Q.
Rahul's Dad became happy seeing the equation he made to find the value of "x” using the perimeter of the house. So, he gave a few equations to Rahul and asked him to solve the equations. What values of
x
should he get? [3 MARKS]
(i)
4
x
+
5
=
25
(ii)
x
−
2
1
3
=
5
1
2
(iii)
(
7
x
+
8
)
÷
7
=
8
Q.
If
x
≠
0
and
2
x
+
1
2
x
=
21
. Find the value of
8
x
3
+
1
8
x
3
[4 MARKS]
Q.
If
x
2
+
1
x
2
=
7
and
x
≠
0
; find the value of:
7
x
3
+
8
x
+
7
x
3
+
8
x
.
Q.
Find the value of x:
x
+
7
x
3
+
8
x
3
−
8
=
0
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Integers
MATHEMATICS
Watch in App
Explore more
Integers
Standard VII Mathematics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app