Answer:
x=7
Step-by-step explanation:
5x%2B7=6x Start with the given equation.
5x=6x-7 Subtract 7 from both sides.
5x-6x=-7 Subtract 6x from both sides.
-x=-7 Combine like terms on the left side.
Divide both sides by -1 to isolate x.
x=7 Reduce.
Answer:
a.) 2(2x)+2(4x-3)
b.)2(2x)+2(4x-3)=42
Step-by-step explanation:
b.)2(2x)+2(4x-3)=42
distribute
4x+8x-3=42
add the like terms
12x-3=42
move the -3 by adding to both sides
12x=45
divide both sides by 12
12x/12=45/12
x=3.75
and to make sure it's right, plug x into the equation.
2(2(3.75))+2(4(3.75)-3)=42
now multiply/add/subtract everything.
2x2x3.75=15 (This was the 1st set of parenthesis)
2x4x3.75-3=27 (This was the 2nd set of parenthesis)
15+27=42
42=42
Answer:
the telephone polé is 24ft.
Step-by-step explanation:
30^2-18^2=b^2
900-324=b^2
576=b^2
\sqrt[576]=sqrt(b^2]
24=b
b=hight of telephone
Answer
the first one is the answer and none of the above
Step-by-step explanation:
