2x + y = 3
x - 2y = -1
If equation one is multiplied by 2 and then the equations are added, the result is _____.

A. 3x = 2
B. 3x = 5
C. 5x = 5

Question

2x + y = 3
x - 2y = -1
If equation one is multiplied by 2 and then the equations are added, the result is _____.

A. 3x = 2
B. 3x = 5
C. 5x = 5

goformit100 · Answer

Sir/Ma'am, A Warm Welcome To Open Study.
Sir/Ma'am please show your Working for the question you have posted.

amistre64 · Answer

which part of this is confusing you;  the multiplying, or the adding?

anonymous · Answer

Multiplying... @amistre64

amistre64 · Answer

lets take equation 1

2x + y = 3

and multiply it all by 2

2(2x + y = 3)

2(2x) + 2(y) = 2(3)

anonymous · Answer

Ok, i hate these types of problems cause i never understand them...

amistre64 · Answer

do you understand now what multiply by 2 means?

anonymous · Answer

Yes now i do

amistre64 · Answer

good ... and  i assume you have the adding down pat :)