Which is the approximate solution for the system of equations x + 5= 10 and 3x + y = 1?

The approximate solution is (-0.36, 2.08).

Given system of equations : x+5y=10 and 3x+y=1

Step-by-step explanation:

First solve the first equation for x:  x = 5.  Next, substitute this 5 for x in the second equation:  3(5) + y = 1, or 15 + y = 1, or y = -14.  The solution is (5, -14).

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

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