3(x - 1) - 8 = 4(1+x) + 5
2 answers:
Answer:
x= 20
Step-by-step explanation:
Step 1 - Distribute into the parenthesis.
3x-1(3)-8= 1(4)+4x+5
Step 2 - Multiply
3x-3-8= 4+4x+5
Step 3 - Add.
3x-3-8= 4x+9
Step 4 - Subtract 3x to both sides to move the variable to one side.
3x-11= 4x+9
-3x -3x
Step 5 - Subtract 9 to both sides.
-11= 1x+9
-9 -9
-20= x
Exchange the signs.
20= x
Answer:
x = -20
Step-by-step explanation:
3(x - 1) - 8 = 4(1+x) + 5
3x - 3 -8 = 4 + 4x + 5
3x - 11 = 9 + 4x
-x = 20
x = - 20
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