What is the value of x if, 5x + 2 = 12?

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A 2
Given,
LHS = 5x + 2
and RHS = 12

Using trial and error method,

Case 1:

Putting x = 1,
LHS = $5 \times 1$ + 2 = 5 + 2 = 7
Hence, LHS is not equal to RHS.

Case 2:

Putting x = 2,
LHS = $5 \times 2$ + 2 = 10 + 2 = 12
Hence, LHS is equal to RHS.

$∴$ x = 2 is the value for the given algebraic equation.

Suggest Corrections

Similar questions

x

\frac{5 x - 3}{12} = 1

\sum

N

¯ ¯ ¯ x

x

$\sum$ fx = 5x + 2, $\sum$ f = 12. If the mean of the distribution is 6, what is the value of x?

x

\frac{5 x}{12} - \frac{3}{8} = \frac{1}{2}

x^{4} - 5 x^{3} + x^{2} + k x - 12

x^{2} - 5 x + 4

Join BYJU'S Learning Program