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Q: What is the answer to 7x plus 3 equals 31?

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x=4

7x + 5y 7(3) + 5(2) 21 + 10 = 31

The answer to the math problem -3 7x plus 7 is x equals 1/3.

-7x - 2y = -3

79

x=4, but this is just very basic algebra, not calculus at all.

Why not? The statement is trivially true, meaning it holds for all values of x.

Subtract by 7x and divide by 2.

2x+3 = 9x 3 = 9x-2x = 7x 7x = 3 x = 3/7

7x-3=3x+8 7x-3x=8+3 4x=11 x=11/4=2.75

The standard form is 7x + 2y - 3 = 0

7x + y + 3 = y7x + 3 = 07x = -3x = -3/7

X = -3

4x+9 = 7x+3 4x-7x = 3-9 -3x = -6 x = 2

3+3x+7x=13 3x+7x=10 10x=10 x=1

7x2-10x+3=0 (7x-3)(x-1)=0

7x - 3 = 3 Subtract 3 from both sides: 7x - 6 = 0 So a = 7 and b = -6

(3,3)

11x - 21 = 7x + 3 4x = 24x = 6

-3.........

X=2

X=-3/7

7x+7=28x 28x-7x=7 21x=7 x=3

It is an equation and the value of x is 2

(2x + 1)(x + 3) = 0; x = -0.5 or -3