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luda_lava [24]
3 years ago
13

Use words to explain why the two equations below are equivalent

Mathematics
1 answer:
DiKsa [7]3 years ago
4 0

Answer:

These equations are equivalent because after you solve the equation the answer are the same. For example 2+2 and 3+1 are equivalent. They both equal four. In these problems are x=3 and x=3.5 they are the same beause of the answer on problem 2 6-x. That makes them both have the same answer

Step-by-step explanation:

7x-9=12

   +9=+9

   7x=21

   /7=/7

   x=3                                

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What is solution 7x+5y=-24 and 4x+y=42?
LenKa [72]
7x+5y=-24 (1)
   4x+y=42 (2)

multiply equation (2) by 5 to get
20x+5y=210 (3)

then calculate (3)-(2) which gives you
13x=234 hence x=18
then substitute for x in either equation to get y=-30
6 0
3 years ago
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What is the slope intercept form for x+3y=0
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Answer:

y = -1/3 x

Step-by-step explanation:

what is the slope intercept form for x+3y=0

Slope intercept form solves for y:

x + 3y = 0

subtract x from both sides:

x + 3y - x = 0 - x

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divide both sides by 3:

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3 0
1 year ago
Use the grouping method to factor the polynomial below completely.<br> x - 4x² + 3x - 12
N76 [4]

Answer:

6xsquare

Step-by-step explanation:

that is my answer

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3 years ago
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Which Expression can be used to solve 3/5÷7/10A. 5/3*7/10B. 5/3*10/7C. 3/5*10/7D. 3/5*7/10
Harrizon [31]

Which Expression can be used to solve 3/5÷7/10



A. 5/3*7/10

B. 5/3*10/7

C. 3/5*10/7

D. 3/5*7/10​

This expression 3/5÷7/10 means

An option to solve the expression is inverting the fraction that is dividing and going to multiply

3/5 x 10/7 C.

________________-

Verification

A and D are the same

6 0
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Zigmanuir [339]
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