Please, please, please help! I need help with 2 questions. I'll fan/medal.
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A system of equations is given below:
y = 3x + 4
2x + 3y = 10
Which of the following steps could be used to solve by substitution?
3x + 4 = 2x + 3y
2x + 3(3x + 4) = 10
2(3x + 4) + 3y = 10
3(y = 3x + 4)
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A set of equations is given below:
Equation S: y = x + 9
Equation T: y = 2x + 1
Which of the following steps can be used to find the solution to the set of equations?
x = 2x + 1
x + 9 = 2x
x + 1 = 2x + 9
x + 9 = 2x + 1

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It erased my work here is what i had typed
http://prntscr.com/7qa7fu

That should take care of #1

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