SOLUTION: Solve and check the following systems by substitution
[-2(x + 2) + 4(y – 3) = -34]
[ 3(x + 4) – 5(y + 2) = 23 ]
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Question 401563: Solve and check the following systems by substitution
[-2(x + 2) + 4(y – 3) = -34]
[ 3(x + 4) – 5(y + 2) = 23 ]
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
-2(x + 2)+ 4(y –3)= -34
3(x + 4) –5(y + 2) = 23
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-2x -4 + 4y –12=-34
3x + 12 –5y -10 = 23
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-2x + 4y –16 = -34
3x –5y + 2 = 23
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-2x + 4y = -34+16.................(1)
3x–5y=23-2 ..................(2)
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-2x + 4y = -18.................(1)
3x –5y= 21 ..................(2)
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-2x + 4y = -18.................(1)..solve for
-2x = -18-4y
...................substitute in .(2)
..................(2)
........................now find
so, your solutions are: and
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