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Q: 3x - 8y equals -18 2x plus 5y equals 19?

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How do you add 2x plus 3y equals 18 in 5x-y equals 11

x equals 19

x + 2x + 5 = x +19 3x + 5 = x +19 3x - x = 19 - 5 2x = 14 x = 7

2 + 2x = 18 2x = 18 - 2 2x = 16 x = 8

5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3

(-1, 5)

(-1, 5)

1

7

-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line

6x+13=-2x-19 so 8x=-19-13=-32 so x=-4

An equation where x equals 3.

-3x+7=2x-18 ---> 7+18=2x-3x ----> 25=5x ----> x=5

2x + 52 = 7 2x + 25 = 7 2x = 7 - 25 2x = -18 x = -18/2 x = -9

2x + 10 = 182x = 8x = 4

18

x=4

4+2x-2x+1=13+6 Combine like terms. (4+1=5; 2x-2x=0; 13+6=19) 5=19 This problem has no solution.

answer is 4 7x+19=-2x+55 +2x +2x 9x+19= 0 55 -19 -19 9x = 36 9 9 =4

4.34684352143

19

it equals 13X.

It is an equation and the value of x is 2

1 + x + 2x = 20 So 1 + 3x = 20 so that 3x = 19 then x = 19/3 or 61/3

(4 + 2x) - (-2x + 1) = 13 + 6 4 + 2x + 2x -1 = 19 4x +3 = 19 4x = 19 - 3 4x = 16 therefore x = 16/4 x = 4