solve the following simultaneous equations using cramer's rule. 5x+3y=-11 ; 2x + 4y=-10
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Answered by
5
Answer:
multiply then add or subtract
Answered by
11
-2[5x+3y=:11]
5(2x+4y=-10
after multiple it will look like this
-10x+-6y=22
10x+20y=-50
Then you simplify add the two equation to gether
0x+14t=-28
solve for y=-2
then pick one of you originally equation and plog it your know y value
5x+3(-2)=-11
5x+6=-1
5x=-5
x=-1
5(2x+4y=-10
after multiple it will look like this
-10x+-6y=22
10x+20y=-50
Then you simplify add the two equation to gether
0x+14t=-28
solve for y=-2
then pick one of you originally equation and plog it your know y value
5x+3(-2)=-11
5x+6=-1
5x=-5
x=-1
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