Question

Solve: 4x - 18 = 3y, 6.c + 7y -4=0.​

Answer 1

Answer:

equation is 4x - 18y = 3y

6x + 7y - 4

Answer 2

Solution of equation x= 3 and y = -2

Given:

4x - 18 = 3y,    6x + 7y -4=0

4x-3y = 18          6x + 7y = 4

To find:

Solution of equation.

Explanation:

4x-3y = 18 ............... 1

6x + 7y = 4 .............. 2

Multiply equation 1 by 7

7(4x-3y) = 18×7

28x - 21y = 126 ...................3

Multiply equation 2 by 3

3(6x + 7y ) = 4×3

18x + 21y = 12 .....................4

Adding Equation 3 and 4

 We get 46x = 138

                   x = $\frac{138}{46}$ = 3

Put this value in equation 1

4x-3y = 18

4×3 - 3y = 18

         3y= 12-18 = -6

          y= -2

Solution of equation x= 3 and y = -2

To learn more....

1)The sum of the roots of a quadratic equation is 3 while the sum of the squares of its roots is 7. find the equation.

https://brainly.in/question/4888783

2)Show that the product of the roots of a quadratic equation is ‘c/a’.

https://brainly.in/question/5483738