Question

Use the method of substitution to solve each of the following equations: 3x+2y+1=0 and 5x +6y=5

Answer 1

Answer:

x=-2 y= -5/2

Step-by-step explanation:

3x+2y =-1

5x+6y=5

multiply 1st eqn by 3

9x+6y=-3

5x+ 6y=5

subtracting them

we will get

4x = -8

x=-2

put value of x in any of the equation.

3(-2)+2y =-1

2y= -1+6

y=5/2