Identify whether each equation has no solution, one solution, or infinitely many solutions.
1 answer:
Answer:
- infinitely many
- one solution
- no solution
- one solution
Step-by-step explanation:
1. 4x−x=2x+x
Simplifies to 3x = 3x, which is true for all values of x. Hence there are infinitely many solutions.
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2. 2x+1=5
True only for x=2; one solution.
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3. 4x+2=5x−x+4
Simplifies to ...
4x +2 = 4x +4
2 = 4 . . . . . . . not true for any value of x; no solution.
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4. 2(x+4)=4(x+2)
Simplifies to ...
2x +8 = 4x +8
0= 2x . . . . . . . . . subtract 2x+8
True only for x=0; one solution.
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Order of operations rules (PEMDAS) reguire that we mult. here before adding or subtracting:
4x-3(x+5) = 4x - 3x -15
Then we have x - 15 (answer)
Answer:
$28.75
Step-by-step explanation:
you need $40 and you have $11.25, so you subtract 40-11.25 which gives you 28.75. You need $28.75
I don't see the question . What is the question
5x - y = 22
-5x -5x
-1y = -5x - 22
---- ---- -----
-1 -1 -1
y = 5x + 22
5X+3X=80
8X=80
X=10
5×10=50
3×10=30
50 and 30
