Answer:
4
Step-by-step explanation:
30-22=2x
8=2x
8/2=x
3x + (x+3) = 19
4x + 3 = 19
4x = 16
x = 4
y= x+3
y= 4+3
y= 7
The subtracton property of equality allows you to subtract the same amount from both sides of an equation without changing the truth of the equation.
Is this algebra? What type of Math this