The equation 2x + 1 = 7 is modeled below. tile(s) from both sides. Then,
To solve the equation with algebra tiles, first remove
divide each side into 4 equal groups.
+1

The trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? a) 48 cm2; 32 cm2; 80 cm 2 b) 48 cm2; 16 cm2; 64 cm 2 c) 128 cm2; 32 cm2; 160 cm 2 d) 128 cm2; 16 cm2; 144 cm 2