Tom is given the equation 10x+15=20
to solve. He says the solution is 12
. Which reason justifies his solution?(1 point)
Responses
Tom says that to solve the equation you first divide by 10 and then subtract 15.
Tom says that to solve the equation you first divide by 10 and then subtract 15.
Tom says that to solve the equation you first subtract 15 and then multiply by 10.
Tom says that to solve the equation you first subtract 15 and then multiply by 10.
Tom says that to solve the equation you first add 15 and then divide by 10.
Tom says that to solve the equation you first add 15 and then divide by 10.
Tom says that to solve the equation you first subtract 15 and then divide by 10.
Tom says that to solve the equation you first subtract 15 and then divide by 10.
Tom says that to solve the equation you first subtract 15 and then divide by 10.
Tom says that to solve the equation you first subtract 15 and then divide by 10.
To verify if Tom's solution is correct, let's follow the steps he described:
1. Start with the equation: 10x + 15 = 20
2. Subtract 15 from both sides of the equation: 10x = 20 - 15
This simplifies to: 10x = 5
3. Divide both sides of the equation by 10 to solve for x: (10x) / 10 = 5 / 10
This simplifies to: x = 0.5
So, based on Tom's explanation, he correctly subtracted 15 from both sides of the equation and then divided both sides by 10 to solve for x. Therefore, his solution of x = 0.5 is justified.