SOLUTION: George and Bella are asked to solve −3x − 30 = 5x + 18. Identify where one of them made an error. George − 3x − 30 = 5x + 18 − 3x − 30

Algebra.Com
Question 901878: George and Bella are asked to solve −3x − 30 = 5x + 18. Identify where one of them made an error.

George
− 3x − 30 = 5x + 18
− 3x − 30 − 5x = 5x + 18 −5x
−8x − 30 = 18
− 8x − 30 + 30 = 18 + 30
−8x = 48
Negative 8x over negative 8 equals 48 over negative 8
x = − 6
Bella
− 3x − 30 = 5x + 18
−3x − 30 − 3x = 5x + 18 − 3x
− 30 = 2x + 18
−30 − 18 = 2x + 18 −18
− 48= 2x
Negative 48 over 2 equals 2x over 2
x=−24
Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
−3x − 30 − 3x = 5x + 18 − 3x
should be
+3x − 30 − 3x = 5x + 18 + 3x
RELATED QUESTIONS

A student is asked to subtract the quantity(3x–2)from the quantity(3x+3h–2) and writes (answered by addingup)
Please help! Could you tell me if I made a mistake in this problem and if I did, where? (answered by ewatrrr,Theo)
1. What is the formula for the determinant of a 3 x 3 matrix ? A. B.... (answered by richard1234)
Solve 2x2 − 3x − 5 = 0 by... (answered by josgarithmetic)
Use matrices to solve the system. (If there is no solution, enter NO SOLUTION. If there... (answered by Fombitz)
To sinplify :2[3x − 7(x − 3) − 8]? To solve F=V+at for t ? (answered by ReadingBoosters)
2 − x ≥ 3x +... (answered by jim_thompson5910)
Question 4 (Multiple Choice Worth 4 points) (08.03)A set of equations is given... (answered by macston)
Solve using substitution: -y − 5x = -7 2y − 2x = 14 Solve using... (answered by Alan3354)