The problem asks us to solve the following equations: a) $5x - 3 = -17$ b) $7x + 6 = -2x - 48$ c) $5x - 8 = 7x - 1$ d) $6(x - 2) = -3(x - 1) + 2$

AlgebraLinear EquationsSolving EquationsVariable Isolation
2025/4/21

1. Problem Description

The problem asks us to solve the following equations:
a) 5x3=175x - 3 = -17
b) 7x+6=2x487x + 6 = -2x - 48
c) 5x8=7x15x - 8 = 7x - 1
d) 6(x2)=3(x1)+26(x - 2) = -3(x - 1) + 2

2. Solution Steps

a) 5x3=175x - 3 = -17
Add 3 to both sides:
5x3+3=17+35x - 3 + 3 = -17 + 3
5x=145x = -14
Divide both sides by 5:
x=145x = \frac{-14}{5}
b) 7x+6=2x487x + 6 = -2x - 48
Add 2x2x to both sides:
7x+2x+6=2x+2x487x + 2x + 6 = -2x + 2x - 48
9x+6=489x + 6 = -48
Subtract 6 from both sides:
9x+66=4869x + 6 - 6 = -48 - 6
9x=549x = -54
Divide both sides by 9:
x=549x = \frac{-54}{9}
x=6x = -6
c) 5x8=7x15x - 8 = 7x - 1
Subtract 5x5x from both sides:
5x5x8=7x5x15x - 5x - 8 = 7x - 5x - 1
8=2x1-8 = 2x - 1
Add 1 to both sides:
8+1=2x1+1-8 + 1 = 2x - 1 + 1
7=2x-7 = 2x
Divide both sides by 2:
x=72x = \frac{-7}{2}
d) 6(x2)=3(x1)+26(x - 2) = -3(x - 1) + 2
Expand both sides:
6x12=3x+3+26x - 12 = -3x + 3 + 2
6x12=3x+56x - 12 = -3x + 5
Add 3x3x to both sides:
6x+3x12=3x+3x+56x + 3x - 12 = -3x + 3x + 5
9x12=59x - 12 = 5
Add 12 to both sides:
9x12+12=5+129x - 12 + 12 = 5 + 12
9x=179x = 17
Divide both sides by 9:
x=179x = \frac{17}{9}

3. Final Answer

a) x=145x = -\frac{14}{5}
b) x=6x = -6
c) x=72x = -\frac{7}{2}
d) x=179x = \frac{17}{9}

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