2 • {[5 • (60 - 14 ÷ 7)] + 25} • 5
Sequence of events : divide by 2 , plus 2 , plus 3 divide by 2 plus 2 , plus 3 , divide by 2 and so on next number 6.
15 + 14 + 14 + 11 + 2x + x = 75 Collect like terms 54 + 3x = 75 Subtract 54 3x = 21 Divide by 3 x = 7 ■
28 in this case.
14*13=182
14*12=168168+41=209
6x + 14 = 20 + 4x ------ Combine like terms (subtract 4x and 14 from both sides). 2x = 6 --------------------- Divide by 2. x = 3
84
Add 8a to each side: -6a + 14 = 2 Subtract 14 from each side: -6a = -12 Divide each side by -6: a = 2. Job done.
14 x 7 = 28 + 70 = 98
The answer is 66.85. Simply add the numbers together arithmetically as you would for two plus two and then divide by 14. To check your work, a calculator is always the best option.
The answer is actually -5 because you always would do P.E.M.D.A.S Parenthesis Exponents Multiply Divide Add Subtract 8 plus 6 = 14 9-14=-5
3x + 1 = -14 -1 -1 ___________ 3x = -15 divide both sides by 3: x = -5