anonymous4332 anonymous4332

11-09-2020
Mathematics

contestada

Find MN

LM = 3y + 4
MN = 7y + 9
LN = 143

Find MN LM 3y 4 MN 7y 9 LN 143 class=

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shownubear1992 shownubear1992

11-09-2020

Answer:

B. 100

Step-by-step explanation:

[tex]3y+4+7y+9=143[/tex]

[tex]10x+13=143[/tex] 143-13=130

10x=130 divide both sides by 10 130/10= 13 x=13

MN=7(13)=91+9=100

LN=3(13)=39+4=43

100+43

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