Question

Solve the equation. Then check your solution. 6 = negative 2 (10 n + 7)

Answer 1

n = -1 OR -1 = n

Explanation:

6 = -2(10n +7)

First we remove the brackets by multiplying the inner numbers by -2

6 = -20n - 14

Then we add 14 on both sides

20 = -20n

We make n the subject and divide both sides by -20

n = -1 OR -1 = n

Answer 2

• Answer:

n = - 1

• Explanation:

Hi !

6 = - 2(10n + 7)

6 = - 20n - 14

20n = - 6 - 14

20n = - 20

n = - 20 : 20

n = - 1

6 = - 2(10×-1 + 7)

6 = - 2(-10 + 7)

6 = - 2(-3)

6 = 6 (true)

Good luck !