Well, darling, a 2-step equation that equals 21 could be something like 2x + 5 = 21. First, you'd subtract 5 from both sides to get 2x = 16, then divide by 2 to find x = 8. Voila, you've got yourself a sassy solution!
example: 4x+5=13 First step: you must subtract 5 on each side. 4x=8 Second step: you must divide must side by four then it equals x=2
Equations that have letters are just called equations, but there are types 1, 2, 3, 4 and ratio type equations. Ratio type equations are the ones where it is a fraction on both sides of the equals sign. Equation (Type 2): x+1-5=12 Ratio Type Equation: 21/7=42-x/3
11k+7.7=15.4
If X equals 2, then y = 5
One out of many examples of two step equations that equal 29 is: (9 x 3) + 2
Well, darling, a 2-step equation that equals 21 could be something like 2x + 5 = 21. First, you'd subtract 5 from both sides to get 2x = 16, then divide by 2 to find x = 8. Voila, you've got yourself a sassy solution!
1 If: 2x+5y = 16 and -5x-2y = 2 2 Then: 2*(2x+5y =16) and 5*(-5x-2y = 2) is equvalent to the above equations 3 Thus: 4x+10y = 32 and -25x-10y = 10 4 Adding both equations: -21x = 42 or x = -2 5 Solutions by substitution: x = -2 and y = 4
example: 4x+5=13 First step: you must subtract 5 on each side. 4x=8 Second step: you must divide must side by four then it equals x=2
step 1: x - 9 = -30 step 2: x = -30 + 9 step 3: x = -21
Equations that have letters are just called equations, but there are types 1, 2, 3, 4 and ratio type equations. Ratio type equations are the ones where it is a fraction on both sides of the equals sign. Equation (Type 2): x+1-5=12 Ratio Type Equation: 21/7=42-x/3
11k+7.7=15.4
From Nick, New York 2x/2=4
If X equals 2, then y = 5
-18 X + Y = 8 ........ 1 -3 X - Y = -2 ........ 2 Summing eq 1 and 2 - 21 X = 6 or X = - 6/21 or -2/7 Multiply eq 2 by 6 and subtract 2 from 1 7 Y = 20 or Y = 20/7 Accordingly, the two equations intersect at point: X = -2/7 and Y = 20/7
When x = -2 then y = 4 which is the common point of intersection of the two equations.
there are infinite equations. 7-1-1-1-1-1-1, 8-2-1-1-1-1-1, ...