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13.01.2020 •
Mathematics
Given the equations 9x+3/4y=6 and 2x+1/2y=9, by what factor the equation to eliminate y and solve the system through linea would you multiply the second equation to eliminate y and solve the system through linear combinations?
options;
a.) -4/3
b.) -3/4
c.) -3/2
d.) -7/2
Solved
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Ответ:
C is correct.
Step-by-step explanation:
Given: System of equation
We have to solve system of equation by eliminating y
So, first we will make the coefficient of y same with opposite sign.
Coefficient of y in first equation 3/4
Coefficient of y in 2nd equation 1/2
Multiply second equation by -3/2 to make coefficient of y same
Add both equation and eliminate y
Hence, We multiply by -3/2 to eliminate y and solve the system of equation.
Ответ:
Its C 9^20
Step-by-step explanation:
Mark brainllest