Solving a two-step equation
properties of equality
adding, subtracting, multiplying, or dividing by the same value on both sides of
an equation does not
the solution set.
2 - 4.2-3
+ 4.2
+ 4.2
06) = 7.20
chest
-42-
check:
7.2 -4.2 = 3

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

true

explanation:

just needed some points but try socratic

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47