Question

5m-3n=19;m-6n=-7
Please help me ​

Answer 1

Step-by-step explanation:

5m-3n=19( multiply with 2)

m-6n=-7

10m-6n=38...........(1) equatio

m-6n=-7............(2 ) equation

add 2 equation s( change symbols)

then 10m-m=9m

-6n +6n=05

38+7=45

then 9m=45

m=45/9

m=5

substitute m=5 in equation 1

5(5)-3n=19

25-3n=19

-3n=19-25

-3n=-6

n=6/3

n=2

then m=5,n=2

Answer 2

For this sum I used elimination method

step1) multiply the both given eqn with the conficents of each other (same variable) variables so that we can get a single vaiable

step2) either add or subtract the equations

step3) after solving we will get the value of a single variable

step4)put it's value on any equation ( which can be easily solved or which will consume our time)

...........................................................................