Suppose a + b = 0. which one of these expressions equals a-b?

For this case we have:

Given , we want to find an expression equivalent to .

Let the equation be:

Subtract -2b on both sides of the equation:

Taking into account that different signs are subtracted and the sign of the major is placed:

Thus, an expression equivalent to is .

-2b

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)  

x = 23.78

step-by-step explanation: