solve the pair equations:
4x - y = 7 and 2x + 9y = 13 graphically
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prince7912:
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4x = 7 + y
x = 7 + y / 4
2x = 13 - 9y
x = 13 - 9y / 2
these are the two equations now take any value of x / y and put it in above two formulas point it on graph
x = 7 + y / 4
2x = 13 - 9y
x = 13 - 9y / 2
these are the two equations now take any value of x / y and put it in above two formulas point it on graph
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