MATH SOLVE

3 months ago

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

Accepted Solution

A:

Answer:1) 20 : (-2) + 5 = -52) 7 + (-5) × 5 = -183) 13 × (-4) - (-3) = -494) 8 + (-12) : 4 = 55) 30 : (-6) × (-2) = 10Step-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 problem1) 20 : (-2) + 5- At first solve 20 : (-2) ⇒ (20 ÷ (-2))∵ 20 : (-2) = -10∴ 20 : (-2) + 5 = -10 + 5 ∵ -10 + 5 = -5∴ 20 : (-2) + 5 = -52) 7 + (-5) × 5- At first solve (-5) × 5∵ (-5) × 5 = -25∴ 7 + (-5) × 5 = 7 + (-25)∵ 7 + (-25) = -18∴ 7 + (-5) × 5 = -183) 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) = -494) 8 + (-12) : 4- At first solve (-12) : 4∵ (-12) : 4 = -3 ⇒ (-12 ÷ 4)∴ 8 + (-12) : 4 = 8 + (-3)∵ 8 + (-3) = 5∴ 8 + (-12) : 4 = 55) 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