Answer :
Answer:
x = 6
y = 18
Step-by-step explanation:
Equations : x + y =4x & 2y - x = 30
Rearrange:
y = 3x & x = 2y - 30
Substitute
y = 3(2y-30)
y = 6y - 90
5y = 90
y = 18
x = 2y-30 = 2*18-30 = 6
Answer:
x = 6
y = 18
Step-by-step explanation:
Equations : x + y =4x & 2y - x = 30
Rearrange:
y = 3x & x = 2y - 30
Substitute
y = 3(2y-30)
y = 6y - 90
5y = 90
y = 18
x = 2y-30 = 2*18-30 = 6