9x − y = 4

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The given equation is 9x - y = 4.

To solve for x and y in this equation, you can use various methods such as substitution, elimination, or graphing. Let's solve it using the substitution method.

Step 1: Solve one of the equations for one variable.
Let's solve the given equation for y:
9x - y = 4
Rearranging, we get:
y = 9x - 4

Step 2: Substitute the value of y found in step 1 into the other equation.
We substitute y = 9x - 4 into the equation to get:
3x + 2(9x - 4) = 10

Step 3: Simplify and solve for x.
Expanding and simplifying this equation gives:
3x + 18x - 8 = 10
21x - 8 = 10
Adding 8 to both sides:
21x = 18
Dividing both sides by 21:
x = 18/21
Simplifying the fraction, we get:
x = 6/7

Step 4: Substitute the value of x found in step 3 back into one of the original equations to find y.
Substituting x = 6/7 into the equation y = 9x - 4, we get:
y = 9(6/7) - 4
y = 54/7 - 28/7
Simplifying the fraction, we get:
y = 26/7

So, the solution to the equation 9x - y = 4 is x = 6/7 and y = 26/7.