All categories

3 years ago

Solve: x + 3 = -x + 7 (5 points)

Mathematics

2 answers:

makvit [3.9K]3 years ago

7 0

Answer:

x = 2

Step-by-step explanation:

x + 3 = -x + 7

Add x to each side

x+x + 3 = -x+x + 7

2x+3 = 7

Subtract 3 from each side

2x = 7-3

2x = 4

Divide by 2

2x/2 = 4/2

x = 2

leva [86]3 years ago

5 0

Answer:

X+3 = -x+7

-3. -3 subtract from each side

X. = -x+4

+× +x. Add to each side

2x. = 4

/2. /2 divide each side

X. =2

You might be interested in

3. A farm has 40m of fence. What is the maximum area he can

Nataliya [291]

Answer:

160m squared

Step-by-step explanation:

3 0

2 years ago

Evaluate the expression 10^2+(3+5)^2 - 5=

vampirchik [111]

Answer:

159

Step-by-step explanation:

10^2+(3+5)^2-5

-> 100 + (3+5)^2 -5

-> 100 + 8^2 - 5

-> 100 + 64 - 5

-> 159

8 0

2 years ago

Read 2 more answers

Of the 25 girls on the Alden Middle School soccer team, 40% also play on a travel team. How many of the girls on the middle scho

SpyIntel [72]

Answer:

10 Girls

Step-by-step explanation:

Total number of girls in Alden Middle school= 25 girls

Percent of girls play for travel team= 40%

We have to find the numbers of girls who play for middle school team

Numbers of girls who play for middle school team= 25 × $\frac{40}{100}$

Numbers of girls who play for middle school team=25 × $\frac{40}{100}$

Numbers of girls who play for middle school team=10

Hence the number of girls play for travel team= 10 girls.

Hence, the correct answer is 10.

5 0

2 years ago

Help me on this it’s in the picture

yarga [219]

Answer:

x = -2

y = 3

Step-by-step explanation:

from above equation we get ,

=》y = 3x + 9

now ,

by second equation,

=》2x + 3y = 5

=》2x + 3 × ( 3x + 9 ) = 5

( since, y = 3x + 9 , by equation 1 )

=》2x + 9x + 27 = 5

=》11x = -22

=》x = -2

putting value of x in equation 1 ;

=》 y = 3x + 9

=》 y = 3 × ( -2 ) + 9

=》 y = -6 + 9

=》 y = 3

5 0

3 years ago

Read 2 more answers

Find six rational numbers between 3 and 4.

inna [77]

3.1, 3.2, 3.3, 3.4, 3.5 and 3.6

3 0

3 years ago

Read 2 more answers