7x + 5y 7(3) + 5(2) 21 + 10 = 31
7x+y=6
-7x - 2y = -3
7X + 2Y = 10 - 7X + Y = - 16 -----------------------just add 3Y = - 6 Y = - 2 --------------find X, top equation 7X + 2(- 2) = 10 7X - 4 = 10 7X = 14 X = 2 ------------check both original equations for consistency; top first 7(2) + 2(- 2) = 10 14 - 4 = 10 10 = 10 ------------top checks; now check bottom equation - 7(2) - 2 = - 16 -14 - 2 = - 16 - 16 = - 16 ------------------both check and are then consistent
7x + 2 = 6x + 2 if and only x = 0.
7x+10=31x so 10=31x-7x or 10 =24x in which case x=10/24 or 5/12
3+3x+7x=13 3x+7x=10 10x=10 x=1
The Y intercept of y=7x+10 is 10.
7x-4=9x+10-14=2xx=-7
134
-2x + 8 = 7x - 10 is technically an equation, in and of itself.
The value of x2+7x+10 depends on the value of X. If x=1, then x2+7x+10 = 18 If x=2, then x2+7x+10 = 28 If x=3, then x2+7x+10 = 40 and so forth
7*7+11*10=159
7x + 5y 7(3) + 5(2) 21 + 10 = 31
It is an equation and the value of x is 8
2x+7x-10=4x+3-2x 9x-10=2x+3 7x=13 x=13/7ans
7x + 8 = 10x - 2 ∴ 3x = 10 ∴ x = 10/3