\( 10 x-1=15-6 x \) \( \frac{3 x}{2}+5=\frac{5 x}{2}-1 \) b) \( 1 \frac{1}{2} z-2=3 \frac{1}{4} z-9 \) c) d) \( 9 x-8=11 x-10 \)
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Mind Expander
Let's solve these equations step-by-step! For the first equation, \( 10x - 1 = 15 - 6x \): 1. Add \( 6x \) to both sides: \( 10x + 6x - 1 = 15 \) 2. Combine like terms: \( 16x - 1 = 15 \) 3. Add 1 to both sides: \( 16x = 16 \) 4. Divide by 16: \( x = 1 \). Moving to the second equation, \( \frac{3x}{2} + 5 = \frac{5x}{2} - 1 \): 1. Subtract \( \frac{3x}{2} \) from both sides: \( 5 = \frac{5x}{2} - \frac{3x}{2} - 1 \) 2. Combine like terms: \( 5 = \frac{2x}{2} - 1 \) 3. Simplify: \( 5 + 1 = x \) which gives \( x = 6 \). Next, let’s tackle \( 1 \frac{1}{2} z - 2 = 3 \frac{1}{4} z - 9 \), or convert to improper fractions: 1. \( \frac{3}{2} z - 2 = \frac{13}{4} z - 9 \). 2. Clear the fractions by multiplying every term by 4: \( 6z - 8 = 13z - 36 \). 3. Rearranging gives \( 6z - 13z = -36 + 8 \), thus \( -7z = -28 \). 4. Divide by -7: \( z = 4 \). Last, for \( 9x - 8 = 11x - 10 \): 1. Rearranging, \( 9x - 11x = -10 + 8 \) leads to \( -2x = -2 \). 2. Divide by -2, resulting in \( x = 1 \). So the solutions are \( x = 1 \), \( x = 6 \), \( z = 4 \), and \( x = 1 \) respectively. Happy solving!