Tolong di jawab ya kakak, buat pr bsk hehe.
1) 20: (-2)+5=
2)7+(-5)x5=
3)13x(-)=
4)8+(-12): 4=
5)30: (-6)x(-2)=

1) 20 : (-2) + 5 = -5

2) 7 + (-5) × 5 = -18

3) 13 × (-4) - (-3) = -49

4) 8 + (-12) : 4 = 5

5) 30 : (-6) × (-2) = 10

Step-by-step explanation:

* Lets revise the order of the operation

- In any problem contains addition , subtraction , multiplication and

 division, then the order of operations is multiplication or division

 whose come first at first and addition or subtraction whose come

 first at second

* Lets solve the problem

1) 20 : (-2) + 5

- At first solve 20 : (-2) ⇒ (20 ÷ (-2))

∵ 20 : (-2) = -10

∴ 20 : (-2) + 5 = -10 + 5

∵ -10 + 5 = -5

∴ 20 : (-2) + 5 = -5

2) 7 + (-5) × 5

- At first solve (-5) × 5

∵ (-5) × 5 = -25

∴ 7 + (-5) × 5 = 7 + (-25)

∵ 7 + (-25) = -18

∴ 7 + (-5) × 5 = -18

3) 13 × (-4) - (-3)

- At first solve 13 × (-4)

∵ 13 × (-4) = -52

∴ 13 × (-4) - (-3) = -52 - (-3)

∵ - (-3) = + 3

∴ 13 × (-4) - (-3) = -52 + 3

∵ -52 + 3 = -49

∴ 13 × (-4) - (-3) = -49

4) 8 + (-12) : 4

- At first solve (-12) : 4

∵ (-12) : 4 = -3 ⇒ (-12 ÷ 4)

∴ 8 + (-12) : 4 = 8 + (-3)

∵ 8 + (-3) = 5

∴ 8 + (-12) : 4 = 5

5) 30 : (-6) × (-2)

- At first we will start with the division because it becomes first

∵ 30 : (-6) = -5

∴ 30 : (-6) × (-2) = (-5) × (-2)

∵ (-5) × (-2) = 10

∴ 30 : (-6) × (-2) = 10

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!