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Ierofanga [76]
3 years ago
12

If four times a number plus 3 is 11, what is the number? a. 4 bm 2 c. 16 d. 5​

Mathematics
2 answers:
goblinko [34]3 years ago
6 0

Answer:

B. 2 (Second Option)

Step-by-step explanation:

Four times: ⇒ 4

Number:⇒  y

4y+3=11

<em>Subtract by 3 both sides of equation.</em>

<em>4y+3-3=11-3</em>

<em>Simplify.</em>

<em>11-3=8</em>

<em>4y=8</em>

<em>Divide by 4 both sides of equation.</em>

<em>4y/4=8/4</em>

<em>SImplify, to find the answer.</em>

<em>8/4=2</em>

<em>y=2 is the correct answer.</em>

<em>2 is the correct answer.</em>

ICE Princess25 [194]3 years ago
4 0

Answer:

The number is 2.

Step-by-step explanation:

4x + 3 = 11

4x = 8

x = 2

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-9 - (18v - 5) = 2(7v - 16) - 3v​
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3 years ago
Use the substitution method to solve the system of equations. Choose the correct ordered pair.
motikmotik
Ur gonna have to pick an equation and solve for a variable.

2x - 2y = 6
2x = 2y + 6 ...divide everything by 2 because u want x by itself
x = y + 3

now we sub y + 3 in for x in the other equation
14x - 2y = 78
14(y + 3) - 2y = 78...distribute thru the parenthesis
14y + 42 - 2y = 78...subtract 42 from both sides, cancelling the 42 on the left
        -42          -42
-----------------------
14y - 2y = 36 ...simplify
12y = 36...divide by 12 on both sides, cancelling out the 12 on the left
y = 36/12
y = 3

now , we already know that x = y + 3...and we know y = 3...so sub in 3 for y and solve for x
x = y + 3
x = 3 + 3
x = 6

solution is (6,3)

it is always a good idea to check ur answer by subbing it into one or both of the equations to see if it is correct
2x - 2y = 6......(6,3)...x = 6 and y = 3
2(6) - 2(3) = 6
12 - 6 = 6
6 = 6 (correct)

so yes, ur solution is (6,3)
4 0
3 years ago
Read 2 more answers
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