Use substitution to solve each system of equations. 4x+y=10 2.

Question

Answer 1

### This problem is unsolvable as stated because the second equation is missing. *If* the second equation were

, then the solution would be

.

Answer 2

## Step 1: Isolate a variable.### The first equation,

, can be easily rearranged to isolate

: Subtract

from both sides to get

.## Step 2: Substitute and solve.### Substitute the expression for

from Step 1 into the second equation (which is missing, making the problem unsolvable as presented). *Assuming* the second equation was

, the substitution would look like this:

. Simplifying this gives

, which further simplifies to

, and finally

.## Step 3: Solve for the other variable.### Substitute the value of

back into either of the original equations. Using the first equation:

. This simplifies to

. Solving for

gives

.

Question