Question

How many solutions can be found in the linear equation? 3(x+4)=3x+4

A. no solution B.one solution C.two solutions D. infinite solutions

Answer 1

olve equations which require undoing 1 operation1.) x - 6 = -122.) x + 6 = -123.) x/6 = -124.) 6x = -125.) - x = -126.) 5x/6 = -12Solve equations which require undoing 2 operations7.) 3 + 2x = - 18.) 3x + 4(x -1) = 2Solve equations which require undoing many operations, some on each side.9.) 3 + 2x = 4x - 110.) 4x + 2 - 3x + 5 - 2(x + 5) = (2x - 5) + (3x + 4) Infenete Solution!

Answer 2

3(x + 4) = 3x + 4
3x + 12 = 3x + 4
3x - 3x = 4 - 12
0 = -8 (incorrect....no solution)

little tip ...
if it ends with a variable equaling a number, like x = 2 or y = 4, then there is 1 solution.
if it ends with something unequal with no variable, like 0 = -4 or 5 = 7, then there is no solution.
if it ends with something equaling with no variable, like 2 = 2 or 5 = 5, then there is infinite solutions.