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Y equals 3x-4 and y equals 4 plus x solve by elimination?

Anonymous

∙ 9y ago

Updated: 4/28/2022

y = 3x - 4

y = 4 + x

Subtract the second equation from the first:

y - y = 3x - 4 - 4 - x

0 = 2x - 8

2x = 8 so that x = 4

Substitute for x into second equation: y = 4 + 4 = 8

So the solutions is (4, 8).

Wiki User

∙ 9y ago

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Q: Y equals 3x-4 and y equals 4 plus x solve by elimination?

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Continue Learning about Calculus

What is the value of x for 30x40?

30x40=? Let's find out. What's 3x4? 12. Ok. So the 3 and 4 are out of the problem now. Look back at the problem. We see two zeros. We already took care of the 3 and 4. So what do we do with the zeros? You add them on to the number you already have. So 4x3=12. So it is 1,200. 30x40=1,200.

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