Solve for x. −3(x−5)−2x=−10

Mathematics

1 answer:

Lady_Fox [76]3 years ago

3 0

-3(x-5)-2x=-10
-3x+15-2x=-10
-5x+15=-10
-5x=-25
x=5
Hope This Helps!

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Which of the following ordered pairs represents the solution to the system given below?

castortr0y [4]

X − 4y = 7
5x + 9y = 6

5x − 20y = 35 //1st * 5
5x + 9y = 6

5x +9y - 5x + 20y = 6 - 35 //2nd - 1st
5x + 9y = 6

29y=-29
5x=6-9y

y=-1 //1st : 29
5x=6-9*(-1)

y=-1
x=15:5 //2nd : 5

y=-1
x=3

check:
for x=3 and y=-1 there is:
x − 4y = 7 is 3 − 4*(-1) = 7 is 7=7 ok
5x + 9y = 6 is 15-9=6 is 6=6 ok

answer: (3;-1) represents the solution.

8 0

3 years ago

Read 2 more answers

Pls help asap adn dont guess :DD

sashaice [31]

Answer:

${ \huge \star} \boxed{ \sqrt{3} \times 7 \sqrt{6}}{ \huge \star} \\ = \sqrt{3} \times 7 \times \sqrt{2 \times 3} \\ = 3 \times 7 \times \sqrt{2} \\ = \boxed{ 21 \sqrt{2}}$