Question

2/9z+7/18z-11/27z=2.5

Answer 1

2/9z+7/18z-11/27z=2.5
z(2/9+7/18-11/27)=2.5 
z(12/54+21/54-22)=2.5
11/54z=5/2
z=5/2:11/54
z=12*3/11

Answer 2

To solve the equation $\frac{2}{9}z + \frac{7}{18}z - \frac{11}{27}z = 2.5$, you can start by combining the terms on the left-hand side of the equation.

First, find a common denominator for the fractions, which in this case is 18:

$\frac{4}{18}z + \frac{7}{18}z - \frac{11}{27}z = 2.5$

Now, add the fractions:

$\frac{4z}{18} + \frac{7z}{18} - \frac{11z}{27} = 2.5$

Next, you can combine the terms with a common denominator:

$\frac{4z + 7z - 11z}{18} = 2.5$

Now, simplify the left-hand side:

$\frac{z}{18} = 2.5$

To isolate $z$, multiply both sides of the equation by 18:

$z = 2.5 \times 18$

$z = 45$

So, the solution to the equation is $z = 45$.