5x - 3 + 2x + 7 = ?
7x + 5 = ?
Chat with our AI personalities
2x + 7 + 5x - 4 - x = (2x + 5x - x) + (7 - 4) = 6x + 3
Depending on how the problem is written. 2x + 3 - 5x + 10 -3x + 13 ■ Or... 2x + 3 - (5x + 10) -3x - 7 ■ I think you want the second answer.
5x + 8 = 2x + 7 5x - 2x = -8 + 7 3x = -1 x = -1/3 (5 x -1/3 + 8 = 6 1/3; 2 x -1/3 + 7 = 6 1/3; QED)
3x - 7 = 5x + 133x - 5x = 13 + 7-2x = 20x = -10x=-3
3x+7=5x-13 ----> 3x-5x=-13-7 ----> -2x=-6 -----> x=3