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-3x equals -21 plus 4x?
-3x=-21+4x-3x-4x=-21+4x-4x-7x=-217x=217x/7=21/7x=3
X plus 3x plus 5 equals 21?
x = 4
How do you factor 3x2 plus 2x -21?
3x2 + 2x - 21 = (3x - 7) (x + 3)
5x plus 7 equals 3x-21?
5x+7=3x-21 -7= -7 5x=3x-14 -3x=-3x 2x=-14 2x/2x=2x/-14 x=-7 The Answer Is -7 -
What is the y-intercept in this linear equation 7y plus 3x - 21 equals 0?
7y+3x-21 =0 7y = -3x+21 y = -3/7x+3 The y intercept is 3
What is -3x plus 10x - 5 plus 26?
-3x + 10x - 5 + 26 = 7x + 21
-3x equals -21 plus 4x?
-3x=-21+4x-3x-4x=-21+4x-4x-7x=-217x=217x/7=21/7x=3
X plus 3x plus 5 equals 21?
x = 4
Factor 21-7y plus 3x-xy?
21-7y+3x-xy7(3-y)+x(3-y)
How do you factor 3x2 plus 2x -21?
3x2 + 2x - 21 = (3x - 7) (x + 3)
5x plus 7 equals 3x-21?
5x+7=3x-21 -7= -7 5x=3x-14 -3x=-3x 2x=-14 2x/2x=2x/-14 x=-7 The Answer Is -7 -
What is 2y plus 3x equals 21 in linear form?
2y+3x=21 is y=-(3/2)x+(21/2) which is y=-1.5x+10.5
What is the y-intercept in this linear equation 7y plus 3x - 21 equals 0?
7y+3x-21 =0 7y = -3x+21 y = -3/7x+3 The y intercept is 3
What is 3x plus 6 equals 21?
3X + 6 = 21 subtract 6 from each side 3X = 15 divide both sides integers by 3 X = 5 =======check 3(5) + 6 = 21 15 + 6 = 21 21 = 21 ========checks
4x plus 6 equals 21 plus 3x?
x = 15 as 4*15+6 = 66 3*15+21 = 66 or an easier way to do it 4x - 3x = 1x 21 - 6 = 15 1x = 15
What is the slope of -7y plus 21 equals 3x?
-7y + 21 = 3x Add '7y' to both sides 21 = 3x + 7y Subtract '3x' from both sides 21 - 3x = 7y 'Swop around'. 7y = -3x + 21 Divide both sides by '7' y = -(3/7)x + 3 The slope of a straight line is the coefficient of 'x' In this case it is ' -3/7'.
What mistake was made in this equation 3x plus 7 equals -4x plus 28 -x plus 7 equals 28 -x equals 21 x equals -21?
3x + 7 = -4x + 28 implies 7x + 7 = 28
