Question

PLEAE USE SUBSTITUTION METHOD and pleae explain it..

y= x+4

3x+y=16​

Answer 1

x=3, y=7

Explanation:

Substituting the first equation y=x+4 into the second:

3x+(x+4)=16

Simplifying:

3x+x+4=16

4x+4=16

Subtracting 4 from both sides:

4x=12

Dividing both sides by 4:

x=3

We can now substitute x=3 into our first equation, y=x+4.

Substituting:

y=3+4

y=7
So, x=3, y=7