<span>Multiply equation(2) with 4 so that coefficient of become same in both the equations(You can make coefficient of y same and can follow the following procedure.)
</span><span>* Subtract (3) from (1)
* </span>Divide both sides by -19
*Subtract 21 from both sides.
*Divide both sides by 4
so the solution is x= 3 and y= -7
Hope I helped you :)
Answer:
67
Step-by-step explanation:
18. all you have to to is take twenty and subtract 2 from it and you get x
1: yes solve the equation 3.14• the diameter
2:yes work backwards dividing pie from the circumference