If 4x+7=18 what is the value of 12x+21
show step by step work please

54

Step-by-step explanation:

4x+7=18

subtracting 7 from both side of the equation

4x+7- 7=18 - 7

4x = 11

to find value of x , we divide both side of the equation by 4

4x/4 = 11/4 = 2.75

x = 2.75

now we plug in the found value of x = 2.75 in place of x in equation 12x+21

12*2.75 + 21 = 33 + 21 = 54

Thus, answer is 54

Given:
Price of the house = 115,732.80
down payment = 10% of the price

115,732.80 * 10% = 11,573.28

Gross monthly salary = 2,624
expenses:
monthly = 1,150.12
sss = 2,624/2 = 1,312 * 6.2% = 81.34
medicare = 1,312 * 1.45% = 19.02
State and Federal taxes: 53 + 101.35 = 154.35
Total Monthly expenses = 1,404.83

2,624 - 1,404.83 = 1,219.17

11,573.28 / 1,219.17 = 9.5 month or 10 months.