a)
x-y=8 x-3y=4
x=8+y
x-3y=4
8+y-3y=4
-2y=-4 /:(-2)
y=2
x=8+2
x=10
b)
x-y=-3 y=2x
x-2x=-3
y=2x
-x=-3 /:(-1)
x=3
y=2*3
y=6
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x-y=8
x-3y=4
x = 8 + y
x - 3y = 4
8 + y - 3y = 4
-2y = -4 /:(-2)
y = 2
x - y = 8
x - 2 = 8
x = 8 + 2 = 10
x = 10
y = 2
b)
x-y=-3
y=2x
x - 2x = -3
-x = = -3 /:(-1)
x = 3
y = 2x
y = 2 × 3
y = 6
x = 3
y = 6
a)
x-y=8
x-3y=4
x=8+y
x-3y=4
x=8+y
8+y-3y=4
x=8+y
-2y=-4 /:(-2)
x=8+y
y=2
x=8+2
y=2
x=10
y=2
b)
x-y=-3
y=2x
x-2x=-3
y=2x
-x=-3 /:(-1)
y=2x
x=3
y=2x
x=3
y=2*3
x=3
y=6
x-3y=4
x=8+y
8+y-3y=4
x=8+y
-2y= 4-8
x=8+y
-2y= -4
x=8+y
-2y=-4 /-2
x=8+y
y=2
x=8+2
y=2
x=10
y=2
b) x-y= -3
y= 2x
x-2x=-3
y=2x
-x=-3 / -1
y=2x
x=3
y= 6