Add the equations.

a.10x-4y=-26
b.2y=24
c.-10x=-24
d.2y=26

Option B

The result of addition is 2y = 24

Solution:

Given that we have to add the equations

Given equations are:

5x - y = -1

-5x + 3y = 25

We have to add both equations

This is similar to adding numbers. i,e 1 + 2 = 3

For adding variables,

When adding or subtracting terms that have exactly the same variables, you either add or subtract the coefficients, and let the result stand with the variable.

Example: 2x + 3x = 5x

Keeping this in mind, let us add the given equations

5x - y = -1

-5x + 3y = 25

0 + 2y = -1 + 25

[ 5x and -5x cancels each other. Combine -y and 3y which gives 2y]

2y = 24

Thus Option B is correct

b

step-by-step explanation:

calculate the scale factor as the ratio of corresponding sides, image to original, that is

scale factor = = = = 1

s

step-by-step explanation: