Given the equations 9x + (3)/(4)y = 6 and 2x + (1/(2)y = 9, by what factor would you multiply the second equation to eliminate y and solve the system
through linear combinations?
A.
-4/3
B.
"-3/4
oc.
312
D.
7/2

20

step-by-step explanation:

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0