✔ 最佳答案
5x + 28 = 153
Isolate the variable by reversing the order of operations. In other words: subtract 28 from both sides of the equation, then divide the value of 5x by 5.
3(2r - 5) + 8(r + 2)
w ? (-2) = 14
Is this one equation? What does the question mark stand for after w? You can combine like terms in 3(2r - 5) + 8(r + 2). The first step would be 3*2r - 3*5 + 8*r + 8*2. Can you take it from there?
Fencing Thirty-six sections of fencing,
all the same length, are joined to form
a fence 180 m long. How long is each
section of fencing? 180/36 m
How are the rules for
solving inequalities similar to those for
solving equations? How are they different?
You solve for the variable by reversing the order of operations, but any time you cancel a negative coefficient
(-3x/-3 = +x), the direction of the inequality changes. So, if
-3x < 9, x > -3
y - 6 , 9
I don't know what this represents.
ok thats all the questions sorry there so long but please please help me Im desperete