kadinmorgan kadinmorgan

24-05-2018
Mathematics

contestada

y=3x+4
x+4y=-10
solve for substitution

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Srimjal Srimjal

24-05-2018

y=3x+4.....eq.(i) x+4y=-10....(eq.ii) putting value of y in eq.(ii),we get, x+4(3x+4)=-10 or x+12x+16=-10 or,13x=-10+16 or,13x=6 ●#x=6÷13 putting value if x in eq.(i),we get y=3(6÷13)+4 or,y=18÷13+4 or,y=(18+52)÷13 ●#y=70÷13

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