Question

Add the equations.
2x - 3y = -1
+ 3x+3y= 26

Answer 1

5x=25

Because negative 3y and positive 3y got cancelled

Answer 2

Answer:

See below.

Step-by-step explanation:

2x -    3y  = -1

+ 3x + 3y = 26      Adding ( Note -3y + 3y = 0):

5x = 25.