X=27
6x plus 3y minus 2x plus 5y equals 4x plus 8y.
2x+7x-10=4x+3-2x 9x-10=2x+3 7x=13 x=13/7ans
answer is 4 7x+19=-2x+55 +2x +2x 9x+19= 0 55 -19 -19 9x = 36 9 9 =4
x + 2x + 5 = x +19 3x + 5 = x +19 3x - x = 19 - 5 2x = 14 x = 7
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.
X=27
6x plus 3y minus 2x plus 5y equals 4x plus 8y.
x equals 19
x + 2y = 27 2x - y = 19 y = 2x - 19 x + 2(2x - 19) = 27 x + 4x - 38 = 27 5x = 65 x = 13 y = 2(13) - 19 y = 7
2x+7x-10=4x+3-2x 9x-10=2x+3 7x=13 x=13/7ans
answer is 4 7x+19=-2x+55 +2x +2x 9x+19= 0 55 -19 -19 9x = 36 9 9 =4
19
[ y = 2x plus or minus any number ] is parallel to it. [ y = -0.5x plus or minus any number ] is perpendicular to it.
2x+3-7=0 2x=4 x=2
x + 2x + 5 = x +19 3x + 5 = x +19 3x - x = 19 - 5 2x = 14 x = 7
3x+7=2x-5 x=-12