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| 1. |
3x +7y = 10y - 2x - 3 |
| Answer» The given equations are2x - y + 3 = 0{tex}\\Rightarrow {/tex} 2 x - y = - 3.............(i)3x - 7y + 10= 0{tex}\\Rightarrow {/tex}3 x - 7 y = - 10...........(ii)Multiplying (i) by -7 ,we get-14x + 7y = 21 ............ (iii)Add (ii) and (iii) , we get3x - 14x = -10 + 21{tex}\\Rightarrow - 11 x = 11{/tex}{tex}\\Rightarrow x = - 1{/tex}Substituting x = -1\xa0in (i),we get2(-1) - y = -3-2 - y = -3y = -2 + 3y = 1So, the solution of given system of equations is x = -1 and y = 1. | |