Wat is -4x + 11y = 15 wanneer x = 2 jaar?

Wat is -4x + 11y = 15 wanneer x = 2 jaar?
Anonim

Antwoord:

# X = 10 #

# Y = 5 #

Uitleg:

# -4x + 11y = 15 # --- (1)

# X = 2y # --- (2)

Sub (2) in (1)

# -4 (2Y) + 11y = 15 #

# -8y + 11y = 15 #

# 3y = 15 #

# Y = 5 # --- (3)

Sub (3) in (2)

# X = 2y #

# X = 2times5 #

# X = 10 #