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Zorluk: OrtaLinear Equations in One Variable

If 23(6x9)34(4x8)=12(x+10)\frac{2}{3}(6x - 9) - \frac{3}{4}(4x - 8) = \frac{1}{2}(x + 10), what is the value of xx?

Cevap: 10

Cevap

The correct answer is 10.
Distributing the fractions on the left-hand side of the equation simplifies the expression to xx. Setting this equal to the right-hand side yields the equation x=12(x+10)x = \frac{1}{2}(x + 10). Multiplying both sides by 2 gives 2x=x+102x = x + 10, and subtracting xx from both sides gives the correct value of 10.

Adım Adım Çözüm

1
Distribute the fraction 23\frac{2}{3} to the terms inside the first parentheses, (6x9)(6x - 9), and distribute the fraction 34-\frac{3}{4} to the terms inside the second parentheses, (4x8)(4x - 8).
4x63x+6=12(x+10)4x - 6 - 3x + 6 = \frac{1}{2}(x + 10)
Applying the distributive property removes the parentheses so that like terms can be combined.
2
Combine the variable terms and constant terms on the left side of the equation.
x=12(x+10)x = \frac{1}{2}(x + 10)
Combining 4x4x and 3x-3x yields xx, while 6-6 and 66 cancel each other out.
3
Multiply both sides of the equation by 2 to eliminate the fraction.
2x=x+102x = x + 10
Multiplying by the denominator simplifies the equation by removing the fraction.
4
Subtract xx from both sides of the equation to isolate the variable.
x=10x = 10
Subtracting xx isolates the variable xx on the left side of the equation.

Anahtar Kavram

Solving linear equations in one variable by applying the distributive property and combining like terms.
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