Question

Y=x-10 Y=-4x-5
Solve using substitution

Answer 1

equate both equations !

x - 10 = -4x - 5

5x - 10 = -5

5x = 5

x = 1

therefore x = 1

Answer 2

x = 1

Explanation:

Both equations can be set equal to each other since they are both equal to y:

`x-10=-4x-5\\5x-10=-5\\5x=5\\x=1`