2x+7x-10=4x+3-2x 9x-10=2x+3 7x=13 x=13/7ans
2x+17 = 4x-3 2x-4x = -3-17 -2x = -20 Answer: x =10
3
x=-1 becaus: 12x+3=2x-7 10x+3=-7 (-2x) 10x=-10 (-3) x=-1 (divided by 10)
2x + 3 = 4x - 7 <=> 4x - 7 = 2x + 3 <=> 2x = 10 <=> x = 5 - - - 2x + 3 = 4x - 7 Take the 2x from each side of the equation. 3 = 2x - 7 Get the numerals together 7 + 3 = 2x Therefore 10 = 2x Therefore 5 = x
4 - 2x = 10 -2x = 10-4 -2x = 6 -x = 3 x = -3
3-2x-2 = 10 -2x = 10+2-3 -2x = 9 x = -4.5
2x-3 = 17 2x = 17+3 2x = 20 x = 10
2x - 4 = -10 2x = -10 +4 2x = -6 x = -3
2x + 4 = 10 2x = 10 - 4 = 6 2x = 6 x = 6/2 = 3
2x+7x-10=4x+3-2x 9x-10=2x+3 7x=13 x=13/7ans
2x+17 = 4x-3 2x-4x = -3-17 -2x = -20 Answer: x =10
5x+7 = 2x-3 5x-2x = -3-7 3x = -10 x = -10/3
3
x=-1 becaus: 12x+3=2x-7 10x+3=-7 (-2x) 10x=-10 (-3) x=-1 (divided by 10)
2x + 3 = 4x - 7 <=> 4x - 7 = 2x + 3 <=> 2x = 10 <=> x = 5 - - - 2x + 3 = 4x - 7 Take the 2x from each side of the equation. 3 = 2x - 7 Get the numerals together 7 + 3 = 2x Therefore 10 = 2x Therefore 5 = x
If 4x - 2x + 4 = 10, the solution is 2x + 4 = 10 and x = 3.