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If 3x plus 7 equals 15 what does x equal?
3x+7=15 -7 -7 3x=6 (Divide) 3 3 x=2 Check it: 3(2)+7=15 6+7=15 15=15 :D
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 -3x-6 equals -15?
-3x=-15+6 -3x=-9 x=-9/-3 x=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
2x plus 4 equals 3x-3?
2x+3=3x-3 2x-3x=-3-3 -x=-6 x=6
What is 5x plus 6 equals 2x plus 15?
5X + 6 = 2X + 15 -2X -2X 3X + 6 = 15 -6 -6 3X = 15 ---- ----- 3 3 x = 5 im so smart.
What is -15 equals 3 plus 3x?
-15 = 3 + 3x is an equation in one variable, x, which can be easily solved, by simple algebraic manipulation...-15 = 3 + 3x-18 = 3x {subtract 3}-6 = x {divide by 3}... so, x = -6.
If 3x plus 7 equals 15 what does x equal?
3x+7=15 -7 -7 3x=6 (Divide) 3 3 x=2 Check it: 3(2)+7=15 6+7=15 15=15 :D
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 -3x plus 5 plus 6 equals -15?
-3x + 5 + 6 = -15 Multiply by -1 (swap all signs): 3x - 5 - 6 = 15 Combine like terms on left side: 3x - 11 = 15 Add 11 to both sides: 3x = 26 Divide both sides by 3: x = 26/3 or 8.66...
What is 9x plus 6 equals 6x plus 15?
9x+6 = 6x+15 9x-6x = 15-6 3x = 9 x = 3
What is -3x-6 equals -15?
-3x=-15+6 -3x=-9 x=-9/-3 x=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
What value for X makes the equation 3x plus 3 equals 2x plus 6 true?
If 3x + 3 = 2x + 6 then 3x - 2x = 6 - 3 x = 3
What is 5x plus 9 equals 3x 15?
if you meant 5x+9=3*15 then, 5x = 36, x = 7.2 if you meant 5x+9=3x+15 then, 2x = 6, x = 3
What is 4x plus 6 minus7x plus 9 equals 18?
4x+6-7x+9=18-3x+15=18-3x=3x=-1
2x plus 4 equals 3x-3?
2x+3=3x-3 2x-3x=-3-3 -x=-6 x=6
