Last one , 8x-7=15+19x?
What does X equal? Thanks in advance?
回答 (10)
✔ 最佳答案
- 22 = 11 x
x = - 2
answer: 8x-7 = 15+19x 8x-19x-7 = 15+19x-19x ( -19x the two aspects) -11x-7+7= 15+7 (upload 7 the two aspects ) -11x = 22 -11x/-2 = 22/2 (divide the two aspects by applying -2) hence, x = -2 desire it facilitates! consistently plug it lower back interior the equation and examine it i recommend does 8(-2)-7 = 15 + 19(2) equivalent on the two aspects.
8x - 7 = 15 + 19x
- 11x = 22
x = -2.
8x-7=15+19x
-8x -8x
-----------------------
-7 = 15+11x
-15 -15
----------------------
-22 =11x
/11 /11 (/ means divide)
----------------------
x = -2
8x-7=15+19x
x=(-7-15) / (19-8)
x=-22 / 11
x = -2
8x - 7 = 15 + 19x
-8x from both sides
-7 = 15 + 11x
-15 from both sides
-22 = 11x
-2 = x
8x-7=15+19x
in this case take x to one side and numbers to other side
11x=-22
divide both side by 11
:. x=-2
8x-7 = 15 + 19x
-8x + 8x - 7 = 15 + 19x - 8x
- 7 = 15 + 11x
-7 - 15 = 15 - 15 + 11x
-22 = 11x
-2 = x
8x -19x = 15 + 7
-11x = 22
x = -2
GOOD LUCK
收錄日期: 2021-05-01 12:34:08
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