im working on algebra hw and i need help with this problem 8.1x - 4.5y = 5.4
8.1x - 4.5y = 5.4.....subtract 8.1x from both sides
-4.5y = -8.1x + 5.4...divide both sides by -4.5
y = (- 8.1/-4.5)x + 5.4 / -4.5...simplify
y = 1.8x - 1.2 <==
Answer:
The solution for y is \(y =\frac{8.1x-5.4}{4.5}\) or \(y =1.8x-1.2\)
Step-by-step explanation:
Consider the provided equation.
\(8.1x - 4.5y = 5.4\)
Solve the equation for y.
Subtract 8.1x to the both side.
\(- 4.5y = 5.4-8.1x\)
Divide both the sides by -4.5
\(y =\frac{5.4-8.1x}{-4.5}\)
\(y =\frac{8.1x-5.4}{4.5}\)
or \(y =1.8x-1.2\)
Hence, the solution for y is \(y =\frac{8.1x-5.4}{4.5}\) or \(y =1.8x-1.2\)