" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
5x + 2y = -11 ⇒ 10x + 4y = -22 _
-29y = -58
y = 2
2x - 5y = -16
2x + 5 x 2 = -16
2x + 10 = -16
2x = -6
x = -3
7x - 8y = 7 x (-3) - 8 x 2 = (-21) - 16 = -37