Solve Equation for y 6y-1.5x=8
To solve the equation 6y – 1.5x = 8 for “y,” first add 1.5x to both sides to isolate the “6y” term:
6y = 8 + 1.5x
Then, divide both sides by 6 to find “y”:
y = (8 + 1.5x) / 6
So, the solution for “y” is y = (8 + 1.5x) / 6.
Isolating a Variable in a Multi-Variable Equation
Solving equations with multiple variables requires carefully applying algebra techniques to isolate the variable you aim to solve for. Let’s examine the step-by-step process for isolating y and solving the equation 6y – 1.5x = 8.
Group Terms by Variable
We first group all terms containing y together on one side and all x terms together on the other side:
6y – 1.5x = 8 6y = 1.5x + 8
Factor Out the y Variable
Factoring out the coefficient 6 from the y terms gives:
6y = 1.5x + 8 6(y) = 1.5x + 8
Divide Both Sides by the Coefficient
Dividing both sides by 6 isolates y:
6(y) = 1.5x + 8 (y) = (1.5x + 8)/6
Simplify the Right Side
Simplifying:
y = x/4 + 4/3
Therefore, the solution for y in terms of x is:
y = x/4 + 4/3
This isolates y on one side, allowing us to directly solve for its value when given an x input.
Checking your work is always key. We could substitute a sample x value in to verify y solves correctly using this new equation.
Methodically applying algebra allows isolating desired variables in multi-variable equations. This provides a powerful tool for determining unknowns in fields from physics to engineering. With practice, isolating variables becomes second nature.
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