The sum of two times a number and11 is -7

Answer 1

so we have 2 times a number: 2x

sum means adding, and we're adding 11: + 11

That gives us the following equation:

2x + 11 = -7

Your question does not specifically say to solve for x, but let's be thorough. Start by subtracting 11 from both sides:

2x + 11 - 11 = -7 - 11

2x = -18

Divide by 2:

2x / 2 = -18 / 2

x = -9

Answer 2

which is 2x + 11 = -7

2x = -18

x = -9

Answer 3

In symbols:

2n + 11 = -7