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At what value of x do the graphs of the equation below intersect ?
2x-y=6
5x+10y=-10

User Demon
by
4.8k points

1 Answer

2 votes

Answer:

x = 2

Explanation:

Solve the two equations simultaneously....whereby you substitute y = 2x - 6 from the above equation into the second equation...

where...; 5x + 10(2x - 6) = -10

5x + 20x - 60 = -10...then move the variables with x to one side...

5x + 20x = -10 + 60

25x = 50

;Therefore...the value of x at intersection point = 2

User Janil
by
5.4k points