od3008
03.11.2020 •
Mathematics
2х + y = 11
4х — Зу = -3
What is the solution to this system of equations?
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Ответ:
The answer is x=3 and y=5
Step-by-step explanation:
Step: Solve 2x+y = 11 for y
2x+y=11
2x+y+−2x=11+−2x (Add -2x to both sides)
y=−2x+11
Step: Substitute −2x+11 for y in 4x−3y = −3
4x−3y = −3
4x−3(−2x+11) = −3
10x−33 = −3 (Simplify both sides of the equation)
10x−33+33 = −3+33 (Add 33 to both sides)
10x=30
= (Divide both sides by 10)
x=3
Step: Substitute 3 for x in y = −2x+11
y=−2x+11
y=(−2)(3)+11
y=5 (Simplify both sides of the equation)
x=3 and y=5
Ответ:
3 can you think of other examples of toxic substances not listed in the gizmo from science 101 at Stephen decatur high