Answer:
90+33+7x+8 = 180 so 180-131 = 7x so 7x = 49 or x = 7.
Step-by-step explanation:
22÷0.4 = 55
55 ×0.4 = 22
answer: 55
X= 12
5/2 x = 3/4 x + 21
7/4 x = 21
x = 12
Answer:
v = 13
b = 23
Step-by-step explanation:
To solve this system of equations, we can negate one equation and add it to other to cancel out one variable.
Looking at v and b, the coefficients are 6, 4 and 13, 9, respectively.
It would be easier to use the LCM of 6 and 4

Answer:
x(x+1) = 12
Step-by-step explanation:
If a number is x then it's consecutive number will be x + 1.
And their product x(x+1)