Question

1) 5x - 100 x=25 2) x³ x=4 3) 2x - 20 x=5 4) 7x + 25 x=4 5) x³ + 9 x=3. 6) 4(x-5) x=20 7) 6x + y² x= 4 and y= 3

please help asap my parents took away everything and expect me to finish all of this with nothing! help! ily!

Answer 1

Explanation:

For all of these problems, we are given the values of the variable x.

Now, we just need to input them into the equations.

1) 5x-100 x=25

5(25)-100

125-100= 25

2) x^3 x=4

4^3= 4×4×4= 64

3) 2x-20 x=5

2(5)-20

10-20= -10

4) 7x+25 x=4

7(4)+25

28+25= 53

5) x^3+9 x=3

3^3+9= (3×3×3)+9

27+9= 36

6) 4(x-5) x=20

4(20-5)

20(4)-5(4)

80-20= 60

7) 6x+y^2 x=4 and y=3

6(4)+3^2

24+(3×3)

24+9= 33

Hope this helps! :)

Answer 2

1) 25

2)64

3)-10

4)53

5)36

6)60

7)33

Explanation:

Substitute

1) 5(25)-100

125-100=25

2) 4*4*4=64

3)2(5)-20

=10-20

-10

4)7(4)+25

28+25

53

5) (3*3*3)+9

27+9

36

6) 4(20-5)

4(15)

60

7)6(4)+(3*3)

24+9

33