Question

Solve this system
y = 6x
4x + y = 7


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Answer 1

x = 7/10 (fraction)

Explanation:

Given that y = 6x, we can substitute it for y

That makes your equation:

4x + 6x = 7

Now, all we need to do is solve for x:

Step 1: Add similar elements:

4x+6x=10x, which gives you 10x=7

Divide next:

10x/10=7/10 (10/10 = 0 and 7/10 = 7/10)

x= 7/10

Answer 2

x = 0.7

y = 4.2

Coordinate form : (0.7, 4.2)

Explanation:

Solve:

Plug in in 6x for y in 4x + y = 7

• 4x + y = 7
• 4x + 6x = 7
• 10x = 7
• x = 0.7

Plug in 0.7 for x in y = 6x

• y = 6x
• y = 6(0.7)
• y = 4.2

x = 0.7
y = 4.2

Coordinate form : (0.7, 4.2)

-Chetan K