5(2x+1)=3(x+4)−55(2x+1)=3(x+4)-5
1
Expand.
10x+5=3x+12−510x+5=3x+12-5

2
Simplify  3x+12−53x+12-5  to  3x+73x+7.
10x+5=3x+710x+5=3x+7

3
Subtract 55 from both sides.
10x=3x+7−510x=3x+7-5

4
Simplify  3x+7−53x+7-5  to  3x+23x+2.
10x=3x+210x=3x+2

5
Subtract 3x3x from both sides.
10x−3x=210x-3x=2

6
Simplify  10x−3x10x-3x  to  7x7x.
7x=27x=2

7
Divide both sides by 77.
x=27x=\frac{2}{7}

Done

Decimal Form: 0.285714

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