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2 years ago

How do you solve this without substituting 2a+b=-5 -5a+b=16

Mathematics

1 answer:

Hoochie [10]2 years ago

8 0

Answer:

answer shown in picture above

Step-by-step explanation:

you need to multiply them so that you can simplify it. the bottom b will become negative and the b's will x out

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Match the two numbers with their least common multiple (LCM).

timurjin [86]

Answer:

8 and 4: A
8 and 6: C
8 and 10: B

Step-by-step explanation:

8 and 4:

Multiples of 8: 8, 16, 24

Multiples of 4: 4, 8, 12, 16

8 and 6:

Multiples of 8: 8, 16, 24

Multiples of 6: 6, 12, 18, 24

8 and 10:

Multiples of 8: 8, 16, 24, 32, 40

Multiples of 10: 10, 20, 30, 40

4 0

3 years ago

1Ox+6-8x=9x +12-8x-2

Goshia [24]

Answer:

X=4

Step-by-step explanation:

3 0

3 years ago

Just need the answer for a and b

34kurt

Answer:

2⁵× 2ˣ = 256

x= 3

(1/3)² (1/3)ˣ = 1/729

x= 4

Step-by-step explanation:

2⁵× 2ˣ = 256

x= 3

use Product Rule: xᵃxᵇ=xᵃ⁺ᵇ

convert both sides to the same base.

2⁵⁺ˣ = 2⁸

cancel the base of 2 on both sides.

5+x=8

subtract 5 from both sides.

x=8-5

simplify 8-5 3.

x=3

(1/2)² (1/3)ˣ = 1/729

x = 4

use division distributive property: (x/y)ᵃ=xᵃ/yᵃ

i hope this helped i didn't feel like typing the rest out though lol :(

5 0

2 years ago

Solve for y.

DochEvi [55]

The answer is b y=6 Use photonath if any more equations like this one

5 0

3 years ago

Read 2 more answers

What is the first step in solving

myrzilka [38]

Answer:

D.) Add 16 to both sides of the equation

Step-by-step explanation:

By adding 16 to both sides, you are eliminating the -16 on the left. You must do it to both sides in order to balance the equation.

5 0

2 years ago

Read 2 more answers