4 years ago

If 3x + 7y = 37 and x= 3, then y =

Mathematics

2 answers:

Gemiola [76]4 years ago

7 0

Answer:

y = 4

Step-by-step explanation:

Given

3x + 7y = 37 ← substitute x = 3 into the equation

3(3) + 7y = 37, that is

9 + 7y = 37 ( subtract 9 from both sides )

7y = 28 ( divide both sides by 7 )

y = 4

Mama L [17]4 years ago

5 0

Answer:

step-by-step-explanation:

3x + 7y= 37

x = 3

3×3 + 7y =37

9 + 7y = 37

37 - 9 = 28

28 ÷ 7 = 4

y = 4

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