madisonsolis05
22.10.2019 •
Mathematics
If 3x+2yy=6 and x+y=4, then
a. 2x+y= ?
b. 4x+3y= ?
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Ответ:
a.2
b.10
Step-by-step explanation:
3x+2y=6(i)
x+y=4(ii)
mutiplying eq(ii) by 2 and subtracting from eq(i)
3x+2y-2x-2y=6-8
x=-2
putting the value of x in eq(ii)
-2+y=4
y=6.
a.
2(-2)+6
=-4+6
=2
b.
4(-2)+3(6)
-8+18
=10
Ответ:
jke
Step-by-step explanation: