Question

Solve. Explain.
x+ y = 52
x-y = 16

(Systems of equations --Substitution method)

Answer 1

here what you want to do is subtract the two equations from each other to eliminate one of the variables

Answer 2

so X is already set up for you to minus them out

Answer 3

Could you visually solve this problem too..after you're done enplaning it..? I'm more of a visual learner..

Answer 4

X-X=0, Y-(-Y)=2Y, and 52-16=36

Answer 5

ya sure

Answer 6

now you have 2Y=36

Answer 7

Y=18

Answer 8

plug 18 in for Y in the original equation and solve for X

Answer 9

X+18=52

Answer 10

I would have added so that y is eliminated. You make less stupid mistakes when you add.

Answer 11

But it doesn't really matter

Answer 12

X=34

Answer 13

I like to get rid of the left most term, habit I guess

Answer 14

x+y=52
x-y=16
-------
2x=68
or,x=68/2
x=34

Answer 15

then the value of x in 1 equation
x+y=52
or,34+y=52
or.y=52-34
y=18 ans