Question

Use Substitution to solve the following System of Equations.
y = 2x - 4
y= 12 +3

Answer 1

x = 9.5

this should be the right answer if the same one you had to solve.

Explanation:

y = 2x - 4

y = 12 + 3 combine them

2x - 4 = 12 + 3

+4 +4 The 4's cancel each other out

2x = 12 + 7 Add then divide

2x = 19

2x = 19

---- ----

19 19

x = 9.5