If the equation (a + 2) x | a | - 1-2 = 1 of X is a linear equation of one variable, then a = 1___ ．

If the equation (a + 2) x | a | - 1-2 = 1 of X is a linear equation of one variable, then a = 1___ ．

∵ (a + 2) x|a| - 1-2 = 1 is a linear equation of one variable. According to the definition of the linear equation of one variable, we get |a| - 1 = 1, the solution is a = ± 2, and ∵ a + 2 ≠ 0, ∵ a = 2

If 3xa-1 + 9 = 0 is a linear equation with one variable, then a=____ ,x=______ .

It should be 3x ^ (A-1) + 9 = 0
A = 2, the equation is 3x + 9 = 0, so x = - 3

If the equation 3xa + 1-th power-4 = 5 about X is a linear equation with one variable, then a=

3xa + 1 power-4 = 5 is a linear equation with one variable
a+1=1
a=0

What is (x-124) / (Y-11) = 4 / 9x

(x-124)/(x-11)=4/9
4(x-11)=9(x-124)
2x-44=9x-1116
-7x=-1072
x=1072/7

Solving equation 9x + (3000-x) × 11% = 298

900x+(3000-x)×11=29800
900x+33000-11x=29800
889x=-3200
x=-3200/889

9x plus 7 is 21.4

9X+7=21.4
9X=21.4-7
9X=14.4
X=14.4/9
X=1.6

681.50, times 458.25, plus 69 times 42.52, how much?

312408.895

How much area is 31 cm multiplied by 52 cm

31cm × 52cm = 1612cm2

52 times 4 equals 92. Moving one equals 92
52 times 4, moving one is 92

It's easy to move matches. Is it 25?
5 of 25 is 3
5:
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3:
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21 divided by 0.9x equals 0.2

21÷0.9x=0.2
x=350/3