3x plus -5 equal 7. so x is 4 so 3times 4 is 12-5 will equal 7.
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∙ 12y agoIf: 3x-7+x = 5 Then: x = 3
if 3x+5=x+19 then x=7
3x+7=2x-5 x=-12
2x2 equals 5
3x - 8 = 7 so x = 5
x=-5
x = 5
3x + 2 + 2x = 7; 3x + 2x = 5x, so 5x + 2 = 7; 7-2=5, so 5x=5. 5x divided by 5 and 5 divided by 5 equals 1, so x equals 1.
2x+12-3x = 5 2x-3x = 5-12 -x = -7 x = 7
-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
(5, 1)
(-1, 5)