The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"
<h3>System of equation</h3>
System of equation are made of two or more equations with unknowns
Given the system of equation
4x=5-2y
y-2x=7
From equation 2:
y = 7 + 2x
The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"
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Answer:
y=-3x-10
Step-by-step explanation:
Let the time Shelia spend on the road be t. Thus, the time Allison spends on the road will be t-2 (assuming t is at least 2 hours).
Since distance is speed*time, we want the time when the distance Allison and Shelia to be the same:



Therefore, Allison will catch up the Shelia after Shelia is on the road for 8 hours (6 hours driving time for Allison).
Answer is 8 3*1=3 2^3=8 ,it's c because (2^4) is 16 3+1=4
Answer:
option 2
Step-by-step explanation: