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bazaltina [42]
2 years ago
14

Does anyone know how to do this two-column proof?

Mathematics
1 answer:
scZoUnD [109]2 years ago
6 0
Where is the proof you need help with?
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Combine like terms. y + 7 + 4(y + 3) =
bearhunter [10]

Answer:

5y+19

Step-by-step explanation:

should be the answer

8 0
2 years ago
Pls help ill give brainleist​
malfutka [58]
I think it’s C. Im not completely sure.
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2 years ago
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Someone please help me❤️ Urgently with at least 1
Oksanka [162]

Answer:

See step-by-step explanation

Step-by-step explanation:

Question 3: (4, -3)

Solving through elimination: Multiply the first equation by -3.

-3x+6y=-30

3x-5y = 27

Add. The x drops out.

y= -3

Substitute -3 in for y.

x-2y=10

x-2(-3)=10

x+6=10

x=4

Question 4: (2,5)

Solve through elimination: Multiply the second equation with 3.

\frac{3}{2} x+y=8

\frac{9}{4} x-y=-\frac{1}{2}

3/2= 6/4

15/4x=7.5

x=2

3/2 (2) + y = 8

3+ y =8

y=5

Question 5: (6,4)

Use your graph to graph.

y=-\frac{1}{3} x+6

Slope of -1/3

Y-intercept of 6 (0,6)

X-intercept of 18 (18,0)

y=\frac{3}{2} x-5

Slope of 3/2

Y-intercept of -5 (0,-5)

X-intercept of \frac{10}{3} (

Question 6: (5, -7)

Ax+2By=-41

4Ax-By=88

3A+2B(4)=-41

4A(3)-B(4)=88

Solve by substitution:

Words of encouragement:

Good luck!

8 0
3 years ago
Find the perimeter of a regular pentagon with each side measuring 6cm.
Black_prince [1.1K]

Answer:

30cm

Step-by-step explanation:

Perimeter of a Pentagon=5L

P=5×6cm=30cm

6 0
2 years ago
What is x?<br> 4x-7= -3x
Ede4ka [16]
X=7
distribute the equation
3 0
3 years ago
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