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Subjects>Math>Calculus

4x - 7 equals -15 what is x?

Anonymous

∙ 15y ago

Updated: 4/28/2022

4x - 7 = -15

4x = -8

x = -2

Wiki User

∙ 15y ago

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What is the solution to the equation below 4x equals x plus 15?

If: 4x = x+15 Then: x = 5

What is the answer to 3x plus 7 equals 4x?

3x+7=4x 7=4x-3x 7=x

How do you solve y equals 2x plus 15 and y equals 4x plus 7 using substitution?

y = 2x + 15 y = 4x + 7 Substitute the value of y from the first equation into the second: 2x + 15 = 4x + 7 Subtract 2x from both sides: 15 = 2x + 7 Subtract 7 from both sides: 8 = 2x Divide both sides by 2: 4 = x. Replace x by its value, 4, in the first equation: y = 2*4 + 15 = 8 + 15 = 23 So the solution is (x, y) = (4, 23)

4x plus y equals 7 2x-3y equals -7?

(A): 4x + y = 7 (B): 2x - 3y = -7 2*(B) 4x - 6y = -14 Subtract from (A) 7y = 21 Divide both sides by 7: y = 3 Substitute in (A): 4x + 3 = 7 ie 4x = 4 or x = 1 Answer: x = 1 , y = 3

Which is the solution set for 3x2 - 4x - 15 equals 0?

3x2-4x-15 = 0 (3x+5)(x-3) = 0 x = -5/3 or x = 3

Related Questions

How do you solve 4x plus 7-3x equals 15?

4x+7-3x = 15 4x-3x = 15-7 x = 8

How do you solve 4x-1 equals 6x-15?

4x-1 = 6x-15 4x-6x = 1-15 -2x = -14 x = 7

4x - 7 equals 5x - 2 what does x equals?

4x-7=5x-2 x=-5

What is 4x-7 equals 141?

x = 37 4x - 7 = 141 4x - 7 + 7 = 141 + 7 4x = 148 x = 37

What is the solution to the equation below 4x equals x plus 15?

If: 4x = x+15 Then: x = 5

What is the answer to 3x plus 7 equals 4x?

3x+7=4x 7=4x-3x 7=x

What is 5x equals 4x plus 7?

If: 5x = 4x+7 Then: 5x-4x = 7 And: x = 7

What is the answer to 4x-5 equals 7?

4x-5=7 4x=12 x=3

If 4x - 1 equals 15 what is x?

4x - 1 = 15 Therefore, 4x = 16 x = 16/4 Therefore, x = 4

What is the answer to 3x equals 7-4x and why?

3x = 7-4x 3x+4x = 7 7x = 7 x = 1

-35 equals 4x - 7?

x=-7

What is 4x-7 equals 1?

4x - 7 = 1 Therefore, 4x = 8 x = 8/4 x = 2

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