Solving a linear equation using the substitution method.

2y-x=3

y-x=4

Question

Mathematics

Janelle Collier

16 July, 02:23

Solving a linear equation using the substitution method.

2y-x=3

y-x=4

+5

Answers (1)

Know the Answer?

Zion Evans · Answer 1

Solve for 1 variable

solve for y in 2nd

y-x=4

add x

y=4+x

su that for y in other

2 (4+x) - x=3

8+2x-x=3

8+x=3

minus 8

x=-5

sub back

y=x+4

y=-5+4

y=-1

(x, y)

(-5,-1)

Solving a linear equation using the substitution method.2y-x=3y-x=4

Solving a linear equation using the substitution method.

2y-x=3

y-x=4