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Q: Is x equals 4 a solution for 3x-1 equals 11?

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no.. x equals 11

The answer is 4. 3x4 - 1 =11 12 - 1 = 11

It's a first-degree equation in 'A'. Its solution is [ A = 7 ].

The answer is 4 - .0001 equals 1X10 -4 which equals a pH of 4

a = 3a + 4 0 = 2a + 4 2a = -4 a = -2

solution with [OH-] = 2.5 x 10-9 , A solution with [H+] = 1.2 x 10-4, A solution with pH = 4.5

15

And what is the question?

So we have 5a + 11 + 3a - 7 = -4 Start by combining common terms such as the 5a and 3a to give you 8a and 11 and -7 to give you 4. So now your equation is 8a + 4 = -4. Subtract 4 from both sides gives you 8a = -8. Divide -8 by 8 to give you a = -1, your solution.

4 equals numbers in a current account pin number

-4 and 4

No, it is not.

-7 + 11 = +4

The answer is 21 because if 21 is divided by 3 it equals 7 plus 4 equals 11.

No. -4 does not equal -2(1).

(x, y) = (3, 7) is a solution.

-11

x=4 y=4

x = 0

y=x+4

0

That's an invalid equation.

(7 * 4) - 4 - 11 = 13

0

2*8 - 4*4 = 0, otherwise insert "does not" before equals.