Solve the equation. −7(x + 7) + 53 = 13 − 8x
x =

i need to know
if u can help me ill give u my num

x=9

Step-by-step explanation:

−7(x+7)+53=13−8x

Step 1: Simplify both sides of the equation.

−7(x+7)+53=13−8x

(−7)(x)+(−7)(7)+53=13+−8x(Distribute)

−7x+−49+53=13+−8x

(−7x)+(−49+53)=−8x+13(Combine Like Terms)

−7x+4=−8x+13

−7x+4=−8x+13

Step 2: Add 8x to both sides.

−7x+4+8x=−8x+13+8x

x+4=13

Step 3: Subtract 4 from both sides.

x+4−4=13−4

x=9

3 ft

step-by-step explanation:

since the triangle is right use pythagoras' identity to solve for a

the square on the hypotenuse is equal to the sum of the squares on the other two sides, that is

a² + 8² = ( )²

a² + 64 = 73 ( subtract 64 from both sides )

a² = 9 ( take the square root of both sides )

a = = 3