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the answer is 3 and here's why
3x-2=7
add 2 to both sides of the equation
(3x-2)+2=7+2
simplify
3x=9
divide both sides by 3
3x/3=9/3
simplify
x=3
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∙ 12y ago
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3x2 plus 7 equals 31?
no...no not quite, its 13, Here:3x2+7=x 3 times 2 equals 66+7=x 6 plus 7 equals 1313=x 13 equals xThere's yours answer, wasnt quite sure if it was a serious question or not but there ya go.
Solve 3x to the 2nd power equals 21 what are the solutions x equals and what is the x intercept?
3x2 = 21 describes two single values, and does not have an x intercept. 3x2 = 21 ∴ x2 = 7 ∴ x = ±√7
What is 3x2-4x plus 7 when x equals -2?
3x2= 6 6-(4x-2)= 6--8= 6+8 = 14 14+7 = 21
3X2 plus X equals -7?
3 x 2 + x = -7 >> 6 + X = -7 >>> x = -13
2x1 plus 3x2 plus 7x3 equals 12?
No. 7*3, alone, is bigger than 12.
What is the factor of 3x2 plus 22x plus 7 equals?
3x2 + 22x + 7 = 3x2 +21x + x + 7 = 3x(x + 7) + (x + 7) = (x + 7)(3x + 1)
3x2 plus 7 equals 31?
no...no not quite, its 13, Here:3x2+7=x 3 times 2 equals 66+7=x 6 plus 7 equals 1313=x 13 equals xThere's yours answer, wasnt quite sure if it was a serious question or not but there ya go.
Solve 3x to the 2nd power equals 21 what are the solutions x equals and what is the x intercept?
3x2 = 21 describes two single values, and does not have an x intercept. 3x2 = 21 ∴ x2 = 7 ∴ x = ±√7
What is 3x2-4x plus 7 when x equals -2?
3x2= 6 6-(4x-2)= 6--8= 6+8 = 14 14+7 = 21
What equals 7 in multiplication?
The only answer I couldn't think of is 1*7
3X2 plus X equals -7?
3 x 2 + x = -7 >> 6 + X = -7 >>> x = -13
What is the property of 3x7 plus 2 equals 3x7 plus 3x2?
3(7 + 2) = 3x7 + 3x2 is an example of the distributive law.The distributive law connects multiplication and addition.
What is the answer to this expression -3x2-6x plus 3 at x equals 7?
-147 - 42 + 3 = -186
2x1 plus 3x2 plus 7x3 equals 12?
No. 7*3, alone, is bigger than 12.
7 minus 1 plus 6 equals show your work?
7-1=6 6+6=12
What is 5c-8 equals 27?
C=7. I'll show my work. 5c-8=27. 5c=35. C=7
-3x2 plus 22x equals 0 how to solve?
-3x2 + 22x = 0 You start by dividing both sides by x: ∴ -3x + 22 = 0 Then rearrange to solve for x: ∴3x = 22 ∴ x = 7 + 1/3
