12x + 17 = 7 Subtract 17 from both sides: 12x = -10 Divide both sides by 12: x = -10/12 = -5/6
Ill show you some examples: Ex. 1:3x + 4 - x + 16 + 12x(4 + 16) + 3x - x +12x20 + 2x + 12x20 + 14xEx. 2:15 - 12x + 4 - 2 + 6x(15+4-2) - 12x + 6x(19-2) - 12x + 6x17 - 18xTo solve these problems, first group like numbers. Then solve the problem until you can't solve anymore!
4x2 is 8+ 12x + 3 collect like terms, 8+3= 11, 12x+11 to solve for x, transpose the 11 to the other side of the = sign, 12x=-11, divide by 12, x=-11/12
This is not an inequality. This is an equation.12x+7=43 12x=36 x=3
An equation demonstrates the equality of two expressions. x2+12x+13 is only one expression. For example, x+y : expression, not equation x+5 = 3 : equation
12x = 11x - 5, subtract both sides by 11x x = -5
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12x - 5 = 11x + 5(1) add 5 to both sides:12x - 5 + 5 = 11x + 5 + 512x = 11x + 10(2) next subtract 11x from both sides:12x - 11x = 11x - 11x + 10x = 10
12x + 17 = 7 Subtract 17 from both sides: 12x = -10 Divide both sides by 12: x = -10/12 = -5/6
Factor. X^2 + 12X X(X + 12) = 0 X = 0 ------------- X + 12 = 0 X = - 12 --------------
Ill show you some examples: Ex. 1:3x + 4 - x + 16 + 12x(4 + 16) + 3x - x +12x20 + 2x + 12x20 + 14xEx. 2:15 - 12x + 4 - 2 + 6x(15+4-2) - 12x + 6x(19-2) - 12x + 6x17 - 18xTo solve these problems, first group like numbers. Then solve the problem until you can't solve anymore!
-12x = 72 Divde both sides by -12 to find the value of x: x = -6
12x + 5 = y Subtract 5 from both sides of the equation. Then divide both sides by 12. The 5 and 12 on the left cancel out, leaving only X. x = (y - 5) / 12
4x2 is 8+ 12x + 3 collect like terms, 8+3= 11, 12x+11 to solve for x, transpose the 11 to the other side of the = sign, 12x=-11, divide by 12, x=-11/12
This is not an inequality. This is an equation.12x+7=43 12x=36 x=3
5x-3 = 11+12x 5x-12x = 11+3 -7x = 14 x = -2
4x2 = -12x, divide both sides by 4x: x = -3