Alright first things first you need to distrubute 6(x-5) so that will be 6x-30=54
In order for you to get x by itself you need to add -30 on both sides so that'll be your second step is to add -30 on both sides: -30+-30 54+-30. Cancel out -30 and add the 54 and -30 together and you'll get 24.
Third and final step you have 6x=24 but you aren't done yet. You need to get X by it self so divide 6 on both sides. Cancel out the x and now you have x by itself. Divide 24 and 6 and you'll get 4
So your answer will be x=4.
Hope this helped :)
have a great day
no because mathematically 30X10=300 not 900 its would have to be 30X30 to get the product of 900 so therefore no your statement is incorrect
Answer:
7. 37
8. 74
9. 402
10. 74
Step-by-step explanation:
You can simplify the expressions and then do the substitution of the variable value, or you can simply plug in the numbers and do the arithmetic. Either way takes about the same effort.
7. 3(5·4 -1) -4(3·4 -7) = 3·19 -4·5 = 57 -20 = 37
8. 3(5·4 -6) +4(20 -3·4) = 3·14 +4·8 = 74
9. 5(10r +3) -7r = 50r +15 -7r = 43r +15 = 43·9 +15 = 402
10. 4(5r -3) -2(6r -7) = 20r -12 -12r +14 = 8r +2 = 8·9 +2 = 74
Answer:
17.5
Step-by-step explanation:
The area of a triangle is (height*base)divided by two
(the eight is really unnecessary)
so 7=base
8=height
7*5=35
35/2=17.5
First u add or subtract the fraction and to simplify it u divide it with any common number Example 3/5+5/8=8/40=1/5
