Question

15 mark for review 3x + 8y = 74 y = 7 the solution to the given system of equations is (x, y). what is the value of x? answer preview:

Explanation:

Step1: Substitute y - value

Substitute $y = 7$ into $3x+8y = 74$. We get $3x+8\times7 = 74$.

Step2: Simplify the equation

$3x + 56=74$. Then subtract 56 from both sides: $3x=74 - 56$, so $3x = 18$.

Step3: Solve for x

Divide both sides of $3x = 18$ by 3. We have $x=\frac{18}{3}=6$.

Answer:

6