1. 4x + 8 and 5x +(-4)
Answers
Answer:
x=-12
Step-by-step explanation:
Simplifying
4x + -8 = 5x + 4
Reorder the terms:
-8 + 4x = 5x + 4
Reorder the terms:
-8 + 4x = 4 + 5x
Solving
-8 + 4x = 4 + 5x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-5x' to each side of the equation.
-8 + 4x + -5x = 4 + 5x + -5x
Combine like terms: 4x + -5x = -1x
-8 + -1x = 4 + 5x + -5x
Combine like terms: 5x + -5x = 0
-8 + -1x = 4 + 0
-8 + -1x = 4
Add '8' to each side of the equation.
-8 + 8 + -1x = 4 + 8
Combine like terms: -8 + 8 = 0
0 + -1x = 4 + 8
-1x = 4 + 8
Combine like terms: 4 + 8 = 12
-1x = 12
Divide each side by '-1'.
x = -12
Simplifying
x = -12
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Answer:
9x + 4
Step-by-step explanation:
4x + 8 and 5x - 4
4x + 8 + 5x - 4
collect common term
4x + 5x + 8 - 4
9x + 4
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