To foil the equation (7x + 10)(-10x - 1), multiply each term in the first binomial by each term in the second binomial. This results in:
Now, combine the like terms:
(-70x^2 - 7x - 100x - 10 = -70x^2 - 107x - 10).
So, the final result is (-70x^2 - 107x - 10).
3x + 17 + 5x = 7x + 10Combine (add) the 'x'-terms on the left side of the equation:8x + 17 = 7x + 10Subtract 17 from each side:8x = 7x - 7Subtract 7x from each side:x = -7
No kind: it is an expression, not an equation.
(x-5)(x-2)
Im guessing that the equation is 7x - 2y +3z= 19 so the answer is 7x + 3z= 19
Why not? The statement is trivially true, meaning it holds for all values of x.
-2x + 8 = 7x - 10 is technically an equation, in and of itself.
3x + 17 + 5x = 7x + 10Combine (add) the 'x'-terms on the left side of the equation:8x + 17 = 7x + 10Subtract 17 from each side:8x = 7x - 7Subtract 7x from each side:x = -7
No kind: it is an expression, not an equation.
(x-5)(x-2)
7x + y = 8 Subtract 7x from each side of the equation: y = -7x + 8
Im guessing that the equation is 7x - 2y +3z= 19 so the answer is 7x + 3z= 19
Why not? The statement is trivially true, meaning it holds for all values of x.
x2+11x+11 = 7x+9 x2+11x-7x+11-9 = 0 x2+4x+2 = 0 The above quadratic equation can be solved by using the quadratic equation formula and it will have two solutions.
7x + 9 = 51 7x = 42 x = 42/7 = 6
7x = -3y + 12
Double first equation: 10x + 2y = 10Subtract second equation: 7x = 7x = 1, y = 0
x = 6.4x + 10 + 3x = 52We can add the x's together (combine the terms) to get:7x + 10 = 52 (the plus 4x and the plus 3x become plus 7x here).Now we can combine the constants (the numbers) by moving the plus 10 to the same side of the equation as the plus 52. When we move something from one side of an equation to the other we must swap the sign (a plus becomes a negative and a negative becomes a plus). So we get:7x = 52 - 10 (in effect we have actually subtracted 10 from BOTH sides of the equation to keep the equation balanced).Now we simplify:7x = 42x = 42/7x = 6.