Review the graphs of a system of two linear equations in two variables: 4x+3y=15

4
x
+
3
y
=
15
and y=x+5
y
=
x
+
5
. Find the solution to both equations.

(1 point)
The intersection point is

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
2 hours ago

To solve the system of equations given by \(4x + 3y = 15\) and \(y = x + 5\), we can use substitution or elimination. Let's use substitution, since the second equation is already solved for \(y\).

Step 1: Substitute \(y\) in the first equation

We know from the second equation: \[ y = x + 5 \]

Now substitute \(y\) in the first equation: \[ 4x + 3(x + 5) = 15 \]

Step 2: Simplify and solve for \(x\)

Distribute the 3: \[ 4x + 3x + 15 = 15 \] Combine like terms: \[ 7x + 15 = 15 \] Now, subtract 15 from both sides: \[ 7x = 0 \] Divide by 7: \[ x = 0 \]

Step 3: Substitute \(x\) back to find \(y\)

Using \(y = x + 5\): \[ y = 0 + 5 = 5 \]

Solution

The intersection point (solution) of the two equations is: \[ \boxed{(0, 5)} \]