Solve 2x+3y=11and 2x-4y=24and hence find the value of‘m’ for which y=MX+3.
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1
Step-by-step explanation:
2x+3y=11
2x-4y=24
Subtract equation 1 and 2
2x+3y=11
-2x+4y=-24 (multiplying -1 to equation 2)
7y=-13; y=-13/7
Substitute y in equation 1
2x+3y=11; 2x+3(-13/7)=11; 2x+(-39/7)=11;2x=11+39/7; 2x=77-39; 2x=38/7;
7
y=mx+3
-13/7=m(38/7)+3
-13/7-3=38m/7
-13-21 =38m/7
7
-34/7×7=38m
-34/38=m
m= -17/19
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