Question

Solve
2a-5b = -19
3a+5b=9

Answer 1

Answer:a=-2

b=3

Step-by-step explanation:

2a-5b=-19

3a+5b=9

Adding them both equals

5a=-10

=>a=-2

Put in any equation

2a-5b=-19

2 (-2)-5b=-19

-4-5b=-19

-5b=-19+4

-5b=-15

=>b=3

Answer 2

Answer:a=-2

b=3

Explanation:

2a-5b=-19

3a+5b=9

Adding them both equals

5a=-10

=>a=-2

Put in any equation

2a-5b=-19

2 (-2)-5b=-19

-4-5b=-19

-5b=-19+4

-5b=-15

=>b=3