5(4 − x) = −5x + 20 i need help
2 answers:
Answer:
Infinite solutions.
Step-by-step explanation:
Distribute the 5 to the numbers inside the parenthesis.
5 × 4=20
5 × -x=-5x
-5x+20.
They are the same.
-5x+20=-5x+20
Add 5x on both sides:
-5x+5x+20=-5x+5x+20
20=20
So there are infinite solutions.
Answer:
x=4
Step-by-step explanation:
-5(4-x)=-5x+20
We simplify the equation to the form, which is simple to understand
-5(4-x)=-5x+20
Reorder the terms in parentheses
+(-20+5x)=-5x+20
Remove unnecessary parentheses
-20+5x=-5x+20
We move all terms containing x to the left and all other terms to the right.
+5x+5x=+20+20
We simplify left and right side of the equation.
+10x=+40
We divide both sides of the equation by 10 to get x.
x=4
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