System of equations can be calculated using substitution method, and several other ways
The system of equations has infinitely many solutions
The system of equations is given as:
[tex]8x -2y=18[/tex]
[tex]y = 4x - 9[/tex]
Substitute 4x - 9 for y in [tex]8x -2y=18[/tex]
[tex]8x - 2(4x - 9) = 18[/tex]
Open brackets
[tex]8x - 8x + 18 = 18[/tex]
Subtract 8x from 8x
[tex]18 = 18[/tex]
The above equation means that, the system of equations has infinitely many solutions
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