Question

What property is 5x + 6 = −9?

Addition Property of Equality
Subtraction Property of Equality
Division Property of Equality
Multiplication Property of Equality

Answer 1

Subtraction property of equality and division property of equality are used.

Solution:

Given equation is 5x + 6 = –9.

To solve this equation using equality properties:

5x + 6 = –9

Subtract 6 from both sides by subtraction property of equality.

5x + 6 – 6 = –9 – 6

5x = –15

Divide by 5 on both sides by division property of equality.

`$(5x)/(5) =(-15)/(5)`

x = –3

Hence the value of x is –3.

Subtraction property of equality and division property of equality are used.