To solve this problem, we must substitute in the value we are given for x into the equation and then solve the equation for the variable y. To begin, we substitute in the value and perform the multiplication with the coefficient, as follows:
5(0.3) + 2y = 20
1.5 +2y = 20
Next, we must subtract 1.5 from both sides to get the variable term by itself. If we do this, then we get:
2y = 18.5
Finally, we must divide both sides by 2y to cancel out the coefficient of 2 on the variable y. Therefore your answer is:
y = 9.25
Hope this helps!
