If 3x - 4 (64 - x) = 10, then the value of x is
(a) -266
(b) 133
(c) 66.5
(d) 38

Solution:

Given, 3x - 4(64 - x) = 10

We have to find the value of x.

Now, 4(64 - x) = 4(64) - 4x

= 256 - 4x

Now, 3x - 4(64 - x) = 10

3x - 256 + 4x = 10

7x = 10 + 256

7x = 266

x = 266/7

x = 38

Therefore, the value of x is 38.

✦ Try This: If 5x + 3(9 - x) = 13, then the value of x is

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 2

---

NCERT Exemplar Class 8 Maths Chapter 4 Sample Problem 2

If 3x - 4 (64 - x) = 10, then the value of x is (a) -266, (b) 133, (c) 66.5, (d) 38

Summary:

If 3x - 4 (64 - x) = 10, then the value of x is 38.

---

☛ Related Questions:

• Fifteen added to thrice a whole number gives 93. The number is __________. Fill in the blanks to mak . . . .
• If 1/3 - x = -2/3, then x is __________. Fill in the blanks to make the statement true
• Three consecutive even numbers whose sum is 156 are 51, 52 and 53. State whether the statement is tr . . . .