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examine this system of equations. which numbers can be multiplied by each equation so that when the two equations are added together, the x term is eliminated?
1/5x + 3/4y = 9
2/3x - 5/6y = 8
a: –10 times the first equation and 3 times the second equation
b: 10 times the first equation and 3 times the second equation
c: –3 times the first equation and 5 times the second equation
d: 3 times the first equation and 5 times the second equation
the multipliers of this system of equations have been determined to create opposite terms of the x-variable.
12(-1/6x - 2/3y = -5 > -2x-8y=-60
5(2/5x + 1/5y = -> 2x+y=-45
what is the value of y?
a: –30
b: –15
c: 15
d: 30
examine the system of equations. which is an equivalent form of the first equation that when added to the second equation eliminates the y terms?
-5x + 3/4y = 12
8x + 12y = 11
a: 10x – 12y = –192
b: –10x + 12y = 192
c: 5x – 12y = 96
d: –5x + 12y = 96