Question

X+y=5;2x+2y=10 please help step by step​

Answer 1

Answer:

0=0

Step-by-step explanation:

x+y=5for x:

x+y=5

x+y+−y=5+−y(Add -y to both sides)

x=−y+5

Step: Substitute−y+5forxin2x+2y=10:

2x+2y=10

2(−y+5)+2y=10

10=10(Simplify both sides of the equation)

10+−10=10+−10(Add -10 to both sides)

0=0