Solve the following systems of equations by elimination method. 4x+2y=7 ; 3x+4y=5
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Step-by-step explanation:
4x+2y=7-------------1
3x+4y=5--------------2
________
equation 1*3 and equation 2*4
12x+6y=21
12x+16y=20
- - -
_________
0-10y=1
-1=10y
-1/10=y put in 1
4x+2(-1/10)=7
4x-2/5=7
4x=7+2/5
4x=35+2/5
4x=37/5
x=37/20
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Answer:
x = 9/5 and y = -1/10
Step-by-step explanation:
see the attached photo
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