Answer:
A way to solve a linear system algebraically is to use the substitution method. The substitution method functions by substituting the one y-value with the other. We're going to explain this by using an example. We can substitute y in the second equation with the first equation since y = y.
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Answer:
yes
Step-by-step explanation:
Answer
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drmallery
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Answer:
X=1, y=3
Step-by-step explanation:
X + y = 4
y=3x
x+ 3x=4 substitute y value of second equation (3x) in y value of 1st equation
4x=4 solve for x
x=1
solve for y by putting x value (4) in either equation:
x+y=4
1+y=4
y=3
check answers using both equations:
x+y=4
1+3=4
4=4
or
y=3x
3=3(1)
3=3
