<span>7x-4y=-7
5x+y=22
multiply 4 on the 2nd equation
</span>20x+ 4y=88
now you have
7x -4y = -7
20x + 4y = 88
--------------------add
27x = 81
x = 3
7x-4y=-7
7(3)-4y=-7
-4y = -28
y = 7
answer (3, 7) is the solution
Answer:
it is the last one
Step-by-step explanation:
me big brain
Are you asking to simplify all of those equations?
<span>-12+2b=12-6b
-12+8b=12
8b=24
b=3</span>
Answer:
Learn little girl
Step-by-step explanation:
