By including its plus or minus signs
Question 3C: Four minus seven equals negative two.
no it equals a positive
You can write this as two equations, and solve them separately. The two equations are:x - 19 = -3and:-x - 19 = -3
x=-1 ^ how do you know?
x = 4 and y = 7
By including its plus or minus signs
15x minus 8=minus 180 3x+8=24
x = 4 and y = 7 which will satisfy both equations
3-(-9) Considering a negative plus a negative equals a positive your equation can be rewritten as 3+9 Which equals 12
Question 3C: Four minus seven equals negative two.
It is an equation with the plus or minus signs missing which makes it impossible to solve.
Without an "equals" word or sign somewhere, there is nothing to solve.You only have an expression, not an equation.
7
y= 131127.691.
9
x equals negative b plus or minus the square root of b squared minus 4bc over 2a