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Mamont248 [21]
3 years ago
11

Find x when y = 5 in the literal equation 4x + 7y= 51.

Mathematics
2 answers:
Charra [1.4K]3 years ago
7 0

Answer:

x=4

Step-by-step explanation:

4x + 7y= 51

We replace y by 5 and determine x.

4x+7×5=51

4x+35=51

4x=51-35

4x=16

x=4

dmitriy555 [2]3 years ago
7 0

Answer:

x = 4

Step-by-step explanation:

<u>Step 1:  Substitute 5 for y and solve </u>

4x + 7(5) = 51

4x + 35 = 51

<u>Step 2:  Subtract 35 from both sides </u>

4x + 35 - 35 = 51 - 35

4x = 16

<u>Step 3:  Divide both sides by 4 </u>

4x / 4 = 16 / 4

<em>x = 4 </em>

Answer:  x = 4

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