Use the substitution method to find all solutions of the system of equations.

1st equation: y = 6- 4x

We put y in the second equation:

5x + 2(6-4x) = 6

5x +12 -8x = 6

-3x = -6

x = 2

We put the value of x back into 1st equation:

y = 6 -4*2 = -2

Solutions: x = 2

y = -2

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