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only one question today

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Sagot :

Answer:

c) Solve for the second equation for y and then substitute this value int the first equation.

Step-by-step explanation:

Answer:

3rd option

Step-by-step explanation:

always choose the equation where the variable is alone.

second equation has a lone 'y' and all that needs to be done is subtracting 2x from both sides of equal sign.