7x + 1 = 20 7x = 19 x = 19/7 x = 2.714285 recurring (that is, 2.714285714285..)
7.5
Im guessing that the equation is 7x - 2y +3z= 19 so the answer is 7x + 3z= 19
answer is 4 7x+19=-2x+55 +2x +2x 9x+19= 0 55 -19 -19 9x = 36 9 9 =4
7x + 19 = -2x + 55Add 2x to both sides:9x + 19 = 55Subtract 19 from both sides:9x = 36Divide both sides by 9x = 4
7x + 1 = 20 7x = 19 x = 19/7 x = 2.714285 recurring (that is, 2.714285714285..)
7.5
Im guessing that the equation is 7x - 2y +3z= 19 so the answer is 7x + 3z= 19
answer is 4 7x+19=-2x+55 +2x +2x 9x+19= 0 55 -19 -19 9x = 36 9 9 =4
7x + 19 = -2x + 55Add 2x to both sides:9x + 19 = 55Subtract 19 from both sides:9x = 36Divide both sides by 9x = 4
20 + 7x
7x-11=-19+3x 4x=-19+11 4x=-8 x=-2 Check it 7x(-2)-11=-14-11=-25 And -19+(-2)x3=-19-6=-25 It works.
-46 = 3x + 7x
7x + y = 8 Subtract 7x from each side of the equation: y = -7x + 8
13x
It is 9x
x=6