Solve by elmination 5x+7y=3 2x=7y+1

5x+7y=3

2x=7y+1

there for the second equation become/2x-7y=1

on subtracting the equation

5x+7y=3

2x-7y=1

7x+0=4

that is

7x=4

therefore

x=4/7

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x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

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i ran through it by the other answer is wrong