Ответ:
x= 0.5 y= 1.5
Объяснение:
4x +2y= 5
-4x +6y = 7
8y= 12
y= 1.5
4x= 2
x= 0.5
4x+2y=5 |×3
4x-6y=-7
----
12x+6y=15
12x+6y+4x-6y=15-7
16x=8
x=1/2
4×(1/2)-6y=-7
2-6y=-7
-6y=-9
y=9/6
x=1/2 (0,5)
y=3/2 (1,5)
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Ответ:
x= 0.5 y= 1.5
Объяснение:
4x +2y= 5
-4x +6y = 7
8y= 12
y= 1.5
4x= 2
x= 0.5
Verified answer
Ответ:
4x+2y=5 |×3
4x-6y=-7
----
12x+6y=15
4x-6y=-7
----
12x+6y+4x-6y=15-7
4x-6y=-7
----
16x=8
4x-6y=-7
----
x=1/2
4×(1/2)-6y=-7
----
x=1/2
2-6y=-7
----
x=1/2
-6y=-9
----
x=1/2
y=9/6
----
x=1/2 (0,5)
y=3/2 (1,5)