To solve the equation (1/3)(3x + 9) = (1/2)(8x + 10):
Step 1: Clear the fractions by multiplying both sides of the equation by 6 (the least common multiple of 3 and 2):
2(3x + 9) = 3(8x + 10)
Step 2: Distribute on both sides of the equation:
6x + 18 = 24x + 30
Step 3: Move the variable terms to one side of the equation and the constant terms to the other side:
6x - 6x + 18 - 18 = 24x - 6x + 30 - 18
Simplify:
0 = 18x + 12
Step 4: Isolate x by subtracting 12 from both sides:
0 - 12 = 18x + 12 - 12
Simplify:
-12 = 18x
Step 5: Finally, divide both sides by 18 to solve for x:
-12 / 18 = 18x / 18
Simplify:
-2/3 = x
So, the solution to the equation is x = -2/3.