Question 184371: how would i solve thge system of equations using substition method?
3=5x-3y+10 &
y=2x+4 ???? Found 2 solutions by solver91311, Alan3354:Answer by solver91311(24713) (Show Source):
Your second equation is already solved in terms of y, so substitute the expression in x to which y is equal for y in the first equation, thus:
Now solve for x. Once you have a value for x, substitute that value into either of the original equations (I would suggest using the second equation because the arithmetic will be a little easier) to determine the value for y.
You can put this solution on YOUR website! how would i solve thge system of equations using substition method?
3=5x-3y+10 --> 5x-3y = -7
y=2x+4
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Since y is already isolated in the 2nd eqn, sub for y into the 1st
5x-3y = -7
5x - 3(2x+4) = -7
5x -6x-12 = -7
-x = 5
x = -5
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y = 2x+4
y = -6
