Question

(k) 7x + 2(x + 2) = 20 - (2x - 5) solve the equation and check your results​

Answer 1

Question -:

7x + 2 (x + 2) = 20 - (2x - 5)

Solve the equation and check the result.

$\pink{\boxed{\blue{\boxed{\purple{\boxed{{\mathfrak{Answer }}}}}}}}$

7x + 2 (x + 2) = 20 - (2x - 5)

7x + 2x + 4 = 20 - 2x - 5

9x + 4 = 20 - 2x - 5

9x + 2x + 4 = 20 - 5

11x + 4 = 15

11x = 15 - 4

11x = 11

x = $\frac{11}{11}$

x = 1

Verification -:

Putting 1 in place of x, we get...

7 × 1 + 2 (1 + 2) = 20 - (2 × 1 - 5)

7 + 2 + 4 = 20 - 2 - 5

13 = 13

Since x = 1 satisfies our equation,

Hence verified.

And x = 1.

Hope my answer helps you!