Answer:
-0.7(4x+9)
Step-by-step explanation:
-2.8x-6.3=-0.7(4x+9)
Sheeesh theeeeee answerrrrrrrr isssssss a=3/4
Answer:15
Step-by-step explanation:
Answer:
x = -76 , y = 57
Step-by-step explanation:
5x - 6y = -38
3x + 4y = 0
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use 4 to multiply equation 1
5x(4) - 6y(4) = - 38(4)
20x -24y = -152
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use 6 to multiply equation 2
3x(6) + 4y(6) = 0(6)
18x + 24y = 0
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20x - 24y = -152
18x + 24y = 0
----------------------
2x = -152
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divide 2 by both sides
x = -76
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to find y, slot in the of x to either equation 1 or 2
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equation 2
3x + 4y = 0
3(-76) + 4y = 0
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-228 + 4y = 0
4y = 228 - 0
4y = 228
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divide both sides by 4
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y = 57
for this type of question, you can use
- substitution method
- elimination method
- graphical method
i used substitution method
hope it helps
Your goal is to fill in the whole grid with numbers, making sure no number is repeated in any row or column. When it is 4x4 you have to use numbers 1,2,3,4.
