Distribute 15 to terms: First, we need to isolate the term containing z on one side of the equation. We can start by distributing the 15 to both terms inside the parentheses.Calculation: 12=15(z)−15(51)Math error check:
Simplify right side: Now, simplify the right side of the equation by multiplying 15 with 51.Calculation: 12=15z−3Math error check:
Add 3 to both sides: Next, we want to get all the terms with z on one side and the constants on the other side. We can do this by adding 3 to both sides of the equation.Calculation: 12+3=15z−3+3Math error check:
Combine like terms: Simplify the equation by combining like terms.Calculation: 15=15zMath error check:
Divide by 15: Finally, we will divide both sides of the equation by 15 to solve for z.Calculation: 1515=1515zMath error check:
Find value of z: Simplify the equation to find the value of z.Calculation: 1=zMath error check:
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