Answer:
x=6
Step-by-step explanation:
We are given the equation
7x+2y=48
We are also given y=3. Since we know y is equal to 3, we can substitute 3 in for y.
7x+2(3)=48
Multiply 2 and 3
7x+6=48
Now, we need to solve for x. To do this, we have to get x by itself. First, subtract 6 from both sides, since 6 is being added on.
7x+6-6=48-6
7x=42
Next, divide both sides by 7, because 7 and x are being multiplied. This will cancel out the 7, and leave x by itself.
7x/7=42/7
x=6
