Question

What is the result of adding the system of equations?

2x + y = 4
3x - y = 6

x = 2
x = 10
5x = 10

Answer 1

x = 2?

Answer 2

give me a sec ok? ^_^

Answer 3

Step: Solve2x+y=4for y:
2x+y+−2x=4+−2x(Add -2x to both sides)
y=−2x+4
Step: Substitute−2x+4foryin3x−y=6:
3x−y=6
3x−(−2x+4)=6
5x−4=6(Simplify both sides of the equation)
5x−4+4=6+4(Add 4 to both sides)
\[\frac{ 5x }{ 5 } = \frac{ 10 }{ 5 }\] (Divide both sides by 5)
x=2
Step: Substitute2forxiny=−2x+4:
y=−2x+4
y=(−2)(2)+4
y=0 (Simplify both sides of the equation)

Answer 4

oh so it 5x=10?

Answer 5

no :)

Answer 6

5x/5 cancel out while dividing by 5

Answer 7

y = 0 and x = 2

Answer 8

oh ok thanks:)

Answer 9

No prob ^_^