Answer:
X=-6
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Step-by-step explanation:
-3x+8+5x=-4
Subtract 8 from both sides and add
2x=-12
X=-6
Yes, that number is in standard form.
We have the system of equations:
3x + 5y = 10
x + 5y = 2 => x = 2 - 5y
__________________
3*(2 - 5y) + 5y = 10
6 - 15y + 5y = 10
-4 = 10y
y = -4/10 = -2/5 => x = 2 - 5*y = 2 - 5*(-2/5) = 2 + 2 = 4
The correct answer is x = 4.
Step-by-step explanation:
5miles=8km
? =12
5miles×12km=?×8km
60km miles=?×8km
?=60miles÷8
?=7.8miles
