Question

Please help....solve using substitution or elimination by addition.

2x + 4y = -8
x + 2y = 4

Thank you will give medals for help

Answer 1

I would go for substitution as it seems the easiest method due to the coefficients of x and y.
re arrange the second equation to make x the subject

y=(4-x)/2

substitute y into the first equation so
2x+4y=-8 becomes
2x+4(4-x)/2 =-8
then solve for x

to get your y value, substitute your x value into one of the equations.

Answer 2

Thank you