savannahvargas512
02.03.2021 •
Mathematics
Write two equivalent expressions for 8.9 -1.4x + (-6.5x) + 3.4.
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Ответ:
-7.9x+12.3
and
(−1.4x+−6.5x)+(8.9+3.4)
Step-by-step explanation:
Ответ:
x=6, y=-6. (6, -6). I used elimination method.
Step-by-step explanation:
-4x-2y=-12
4x+8y=-24
6y=-36
y=-36/6
y=-6
-4x-2(-6)=-12
-4x+12=-12
-4x=-12-12
-4x=-24
4x=24
x=24/4
x=6