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Solve the following simultaneous equation. 3x+2y =18 ; 7x-2y=22 |
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Answer» Answer: Step-by-step explanation: Answer by Abhira Singh X=4 and Y=3 Step-by-step explanation: 3x + 2y = 18 ---- eq (1) 7x - 2y = 22 ---- eq (2) By simultaneous METHOD , adding eq (1) and (2) 3x+ 2y = 18 + 7x - 2y = 22 ------------------------- 10x = 40 x= 4 put x=4 in eq 1 3x + 2y = 18 3(4) + 2y = 18 12 + 2y = 18 2y = 18 - 12 2y = 6 y = 3 ___________________________ Additional information ❤ What does simultaneous simultaneously mean? adjective. existing, OCCURRING, or operating at the same time; concurrent: simultaneous movements; simultaneous translation. ____________________________ How do we solve simultaneous equations? Step 1: Multiply each equation by a suitable number so that the TWO equations have the same leading coefficient. ... Step 2: Subtract the second equation from the first. Step 3: Solve this new equation for y. Step 4: Substitute y = 2 into EITHER Equation 1 or Equation 2 above and solve for x. ____________________________ Hope it helps you ❤ |
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