Number of solutions of equation $5 x + 20 x - 3 x = 7$ are

1

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

10

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

9

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

8

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

Open in App

Solution

The correct option is A $1$
We have,

$5 x + 20 x - 3 x = 7$

$\Rightarrow 22 x = 7$

$\Rightarrow x = \frac{7}{22}$
Hence, this is the answer.

Suggest Corrections

Similar questions

\sqrt{5 x^{2} - 6 x + 8} - \sqrt{5 x^{2} - 6 x - 7} = 1

\sqrt{3 x - 2} + \sqrt{4 x + 4} = \sqrt{5 x + 1} + \sqrt{4 x - 5}

5 x - 11 = 2 x + 7

3 (x - 8) - 2 (x - 5) = 2 - 5 x

2 (3 x + 1) - 7 = 2 (6 x - 7)

\frac{1}{(7 - 4 \sqrt{3})^{x^{2} - 3 x + 1}} + \frac{1}{(7 + 4 \sqrt{3})^{x^{2} - 3 x + 1}} = 14

Solve the following equations by trial and error
method:

$(1) x - 10 = 5$

$(2) \frac{a}{7} + 8 = 6$

$(3) x^{2} + 6 = 9$

$(4) 19 = x + 13$

$(5) \frac{x}{4} = 9$

$(6) 2 x + 4 = 3 x - 4$

Join BYJU'S Learning Program