Saved Bookmarks
| 1. |
Solve the following system of equations by cross multiplication method2x + y = 7 , 4x - 3y = -1 |
|
Answer» Answer: x=2. y=3 Step-by-step explanation: 2x+y=7 multiply by 4 4x-3y=-1 multiply by 2 we get 8x+4y=28------------3 8x-6y=-2--------------4 substraction EQ 3 and eq 4 8x+4y=28 8x-6y=-2 - +. + -------------- 10y=30 y=30÷10 y= 3 put y=3 in eq 3 8x+4×3=28 8x+12= 28 8x=28-12 8x=16 x=16÷8 x=2 plz make as BRAINLIEST |
|