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21-10-2019
Mathematics

contestada

If 3x+2yy=6 and x+y=4, then
a. 2x+y= ?
b. 4x+3y= ?

Respuesta :

ExieFansler ExieFansler

22-10-2019

Answer:

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

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