Hat is the value of x in the equation 7x + 2y = 48, when y = 3?

x = 6

Step-by-step explanation:

When y = 3, we can use this value to substitute into the equation for 'y' in order to solve for 'x':

7x + 2 (3) = 48 or 7x + 6 = 48

Subtract '6' from both sides: 7x + 6 - 6 = 48 - 6 or 7x = 42

Divide both sides by '7': 7x/7 = 42/7

Solve for 'x': x = 6

X=6 because if you plug 3 into y && multiply 3x2 equals 6 subtract that from 48 which is 42 && divide 42 by 7