The answer to your question is 177,251.28571529
R=-7, you have to put each answer in the equation, therefore; 21=42-3(-7) So you have to do multiplication (PEMDAS, if you arent aware of that acronym then it stands for the order of what to do with an equation, Parentheses get solved first, then Exponents, then multiplication, then division, then addition, then finally subtraction. Solving in that order will solve your answer correctly.) With -3 times -7 which gives you 21. Then you do 42 - 21 which equals 21. So 21 = 21.
Answer:use the app socratic
Step-by-step explanation:for all math answers
no
you can't have two of the same numbers
<span>1/10 you can make an equivalent fraction to make 10/100 then you have two numbers with the same denominator then you just add 8+10 which equals 18, therefore, the answer is 18/100 </span>
