Maths question Solve the following system:?

Solve the following system:x − 2y = 6−7.5x + 15y = −45 or:Solve the following system:x \u2212 2y = 6\u22127.5x + 15y = \u221245or:x

Solve the following system:
x − 2y = 6
−7.5x + 15y = −45

or:Solve the following system:x \u2212 2y = 6\u22127.5x + 15y = \u221245

or:x \u2212 2y = 6\u22127.5x + 15y = \u221245You have two lines. Where they cross, both equations are solved by the same values, so it is called a simultaneous system. It looks like this: www.wolframalpha.com/input/?i=plot+x+%E2%88%92+2y+%3D+6,+%E2%88%927.5x+%2B+15y+%3D+%E2%88%9245Right away we notice that the two lines are identical.x \u2212 2y = 6-2y = -x + 6y = x/2 - 3 Slope intercept form, slope = 1/2\u22127.5x + 15y = \u22124515y = 7.5x - 45y = x/2 - 3 Same line!

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